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The Risks of Flying
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Contents
...Risk Analysis; ...Trying
to Define Risk;
Creating Risk;
Reducing
the Risks;
How Safe Is Safe? ...On
Reaching Overload; ...Situational Awareness;
Immediate
Action Items;
Flying Is Not
Traumatic, If;
...Complacency; ...Judgment;
...Cockpit Resource Management; An
Application of CRM; ...CRM
Training Uses DECIDE;
...Accident Factors are 80% the Pilot;
Decision
Making After the Accident; ...Advice from WWII;
Precautions;
When to
Get Fuel;
Defensive Flying
Event
Management; ..Wildlife on the Runway;
Survival
Revisited;
Pilot
Failure Causes Engine
Failures;
The When, How and What to Do;
...Emergencies Revisited;
Training
Your Instincts;
Low Level Options;
Autopilot;
Fire;
Simulation Problems; ...Simulated
Engine Failures;
Knowing the Risks; ...Airplanes
Can Be Safer; ...Black Box Update; ...Opinion
on electronic Failures; ...
Risk Analysis.
More exact measurement techniques have given new precision to the process
of determining the numbers to probabilities of a specific outcome of a series
of events or of one event. This means that the FAA can decide with some
accuracy as to how to allocate resources of personnel and technology to
education, prevention, enforcement or punishment.
A pilot makes hundreds of risk assessments prior to, during and even after
every phase of a given flight. Much of the risk management skills we use in
our personal lives flows over to our flying. If we have failed to manage our
perceptions of risk and reality in our personal lives, we are likely to have
difficulty in our flying. Hence the FAA's interest our driving records and
life style.
Airplane accidents are sources of spectacular deaths that attract media
attention and political responses. The FAA as a political empire is very
sensitive to the publicity of flight accidents because of the media impact.
This is reason there is a historic correlation between an accident and the
bringing into existence of an FAR.
The public has an enlarged presumption that every aircraft accident will lead
to dramatic deaths and mysterious causes. The historical facts are that over
80% of aircraft accidents can be attributed to the pilot's inability to
correctly assess the risk/probability factors being dealt with. It's called
pilot error. Flying is a self-created risk program that is blown all out of
proportion to the probability of a fatal occurrence. Only 6% of aircraft
accidents result in serious injury or a fatality. The natural risks of
everyday life are incorrectly perceived as less dangerous than the risks
endemic to flying.
The FARs relating to flight safety are politically motivated by knee-jerk and
special interest legislation. The FAA is forced into the committing of
statistical homicide by applying limited resources to eliminate negligible
risks. Flying will never be safe. Reduction of inherent risk in one area will
only increase them in another.
The confidence of the poor pilot usually exceeds his ability to perform. Poor
pilots are more prone to express this confidence than are competent pilots.
There is a handholding relationship between the competent pilot and the
recognition of this competence. The poor pilot's hand holding relationship is
such that there is no recognition between skill required and the reality of
what is required.
Conscientious pilots are noted for spending a proportionate greater amount of
time in consideration of the flying they have done and are going to do. The
pretentious among us would claim more for themselves and their aircraft than
exists. There is something every pilot can do to remedy any proliferation of
this condition.
1. Don't try to dominate pilot conversations.
2. Hand fly at every opportunity.
3. Fly new places and different aircraft.
4. Fly with anyone who will fly
5. Safe is not the same as risk free.
Trying to Define
Risk:
To the degree that behavior is consistent and predictable it can be
measured. Why do certain pilots take unnecessary risks? Student pilots are
unlikely to take risks because they have entered a world of uncertainty and
doubts. Private pilots at 5 to 500 hours are beginning to think that they know
how to fly. The VFR pilot uses surface features to correlate position to the
chart. Situational awareness is a region of comfort brought by knowing where
you have been, are now and will be. Industrial accident studies have shown
that a given risk situation can occur up to 300 times before an accident
actually occurs. This type of study does not apply to flying or aircraft. In
air and ground operations there are differences in that there is a consistent
combination of elements that lead to accidents. Time is such an element.
Weather is another element. Every flight, regardless of locality distance or
time of day, contains the same elements of risk. Risk control improves as the
pilot acquires preparation, proficiency, and situational awareness .
Flying a given direct route is about ten times more dangerous than driving the
same route by road. Every person knows more people who have been killed while
flying than they know who have been killed in cars. Flying is not as safe as
pilots think it is. For every one-hundred million automobile miles fewer that
two people are killed. Not quite two people are killed in every aircraft
accident. One of these accidents occur every day of the year on average.
Flying fatality rate is nearly 18 per one-hundred million miles. It would seem
that the biggest factor of difference between the rates lies in the control
the 'driver' has over what happens. Risk exposure in terms of what you can do
about what happens is much greater in cars.
Pilots deliberately undertake a known risk every time they fly. Assumption
that any existing risk is manageable can be instantly removed. Do pilots get
better in assessment of risk? There is no certainty in life or flying. A pilot
who is self-confident of his ability to fly complex aircraft into complex
situations will not seek out these situations but will get gratification by
showing that his mastery will actually reduce the risk. Such a pilot is
cautious when dealing with the fuzzy areas of safety.
Creating Risk
Safety is a fundamental in flight instruction. However, there are
variations in the quality of the safety instruction being given. A student may
be paranoid in his need to maintain a traffic watch. One of my recent students
had, early on attended an
AOPA seminar about mid-airs and arrived in my hands in such a condition.
Mid-airs do occur but concomitant to this should be probability, survival rates
and avoidance. The quality of safety instruction exists only in the totality
of the presentation.
Recently, I was working a pilot through his flight review. Today took our
second flight. Initially did some airwork after finding that pilot was unclear
as to meaning of "Demonstrated Crosswind Capability". He indicated
that he never flew in crosswinds above 13 knots. We got that straightened and
also the use of flaps. Just as I did many years ago he believed that every
landing had to use full flaps.
The higher aircraft performance the more efficient must be both traffic scan
and radio procedures. Rate of closure often requires rapid interpretation and
response as when a Hawker Jet was pointed-out to us. He failed to interpret
the Hawker's five-mile final to our turning down wind. He looked all over the
sky until I told him where and how to look Laziness is the source of inventive
genius.
The poor landing is the place when a pilot can suffer the greatest damage to
ego. Weather is where he is more likely to end the aging process. Weather
accidents are more often to have serious or fatal results. The VFR pilot who
challenges weather is raising the risk level of the entire flight. The IFR
pilot on the same flight has an increased risk level but much lower than the
VFR pilot because of a higher skill and experience level in dealing with
weather. Both IFR and VFR pilots have greatly increased risk levels when
flying at night. In all cases the primary risk of a pilot lies in the
thought-processes available and used.
Beyond that, he never gave his altitude on any radio call. He had always
believed that he was always giving position information to someone on the
ground. When an airplane was pointed-out by ATC he never included his altitude
as part of his location and response. He would continue to seek out and find
an airplane even though its flight direction and altitude could not possibly
pose a conflict. Being able to interpret the third dimension of traffic
avoidance had never been taught to this particular pilot. Situational
awareness must be three-dimensional. A decrease in ceiling and visibility is a
major risk factor to the VFR pilot. The same ceiling and visibility need not
be hazardous to the IFR pilot unless it is accompanied by turbulence. The risk
is always there. A higher training level is one of the ways a pilot can
control some areas of risk. Improved judgment usually accompanies additional
training, or at least it should. A pilot must accept the fact that there is
always some risk available and just waiting for the opportunity to become
active.
Reducing the Risks
Pilots can reduce the already low probability of a midair collision by
flying where risks are lowest. Avoid altitudes of even thousands and five
hundreds. Fly standard patterns. Avoid VORs. Avoid airways and be vigilant
when crossing since airways are eight miles wide. Do your airwork over hills
when possible since direction requirements are effective when 3000 feet AGL.
Know local obstacles as they intrude into your safe zones. Find your safe
night altitudes during daylight. Don't fly IFR corridors during low visibility
VFR.
Once you have determined where to fly safely, you are ready to use your eyes
and communications. When making an arrival call-up use a prominent local
checkpoint referencing your position one-mile to either side. Some checkpoints
collect airplanes like flies. Try to use uncommon but known checkpoints both
to educate ATC and other pilots. Always include your altitude in radio calls
even to ATC. You do this as an advisory to other pilots. When making a
departure I suggest that you request of ATC to proceed on-course to a specific
destination. Wide angle departures such as downwind, crosswind, or
straight-out can be valid over 90 degrees or more. A destination allows other
pilots to draw a mental line as to where to look for you. Make a study of
aircraft appearance and performance so you know what to look for and what to
expect.
I teach a careful selection of flight areas, routes and altitudes for safety.
It is not unusual for us to fly a two hour lesson without encountering a
single aircraft in one of the most heavily flown areas of the world. When we
do see aircraft it is remarkable how my emphasis upon unusual altitudes gives
us an additional margin of safety. My expectation is that my students will
pass this practice on to those pilots who come under their influence.
Just by staying out of high performance planes and adverse weather survival
rates improve markedly. The aircraft that cuts travel time by a factor of
three increases the accident probability factor by ten. What we do in the air
is dangerous. Knowing the degree of risk exposure is vital information not
often available to the inexperienced pilot. An accident is the end result of a
chain of events. A short flight is statistically no safer than a long one.
They both have an equal number of events that can and may go wrong.
Single pilot operations have an increase in risk factors. The single pilot is
more likely to be ego driven to do things that would not be done before
another pilot. Far too many pilots fly in a manner of seeking the reward of
the thrill without being prepared to manage the risk. An airplane is a
precious commodity that does not lend itself to carelessness or abuse.
Factors that both increase and decrease risk.
1. Self confidence
2. Organized and disciplined
3. Patient to avoid precipitous actions, yet willing to act.
4. Gathers information and updates when able.
5. Emotions are separated from decisions
6. Communicates easily
7. Committed to proficiency and currency
8. Gives precedence to safety over all other considerations.
9. Density altitude that is most likely to be ignored by operators of high
performance aircraft.
10. When your brakes fail, consider changing seats to use the other set of
brakes.
11. The computability of safety and conditioned behavior is open to question.
12. Find an appropriate and expedient way to resolve problems.
How Safe is Safe?
--There is no absence of risk in flying.
--Every accident comes through a sequence of compromises.
--Complacency is the most avoidable compromise.
--Acceptance of deficiency is most dangerous compromise
--Personal considerations cause the next compromise.
--Unfamiliarity breeds the next.
--Conflict avoidance comes as the next compromise
--Weigh compromises against what occurs next.
--Worst compromise is when 'needs' exceed safety considerations.
On Reaching Overload
A pilot is occasionally faced with a situation that pushes his envelope of
competence. Usually this situation arises through an accumulation of pilot
performance or non-performance. Occasionally aircraft systems design or the
ATC requirements push the envelope. It is important that the pilot recognize
the potential performance stress when it arises, and more importantly to see
the rise of negative decision making factors.
Decision making of the dangerous kind has many warning signs brought on by
stress on your performance envelope. You will become uncertain of what your
options are. You will have difficulty making a choice of an option. You will
fixate, focus, and become preoccupied with your one choice. Time will become
distorted so that the sequence of events will
become slow-motion.
Poor judgment is quite likely to be a matter of 'situational inertia' which is
a distraction than interrupts the decision making process. The pilot becomes
redirected and focused on an unrelated situation that is not related to the
actual problem. This subsidiary matter inhibits the pilot's ability to
interpret information in its proper context. The resulting decision is wrong
and contrary to good operating procedures or the FARs. Situational inertia
moves the pilot inexorably into a accident. The NTSB calls it a matter of poor
judgment.
The normal thinking reaction to an emergency is a concentration of thought is
on your perception of what occurred. The rise of tension along with focus on
attention blocks out everything else thus limiting your ability to make use of
other peripheral and available resources. this means that while you may be
dealing with the emergency at the same time you are not dealing with the
ordinary functions involving just flying the aircraft.
When a traumatic situation occurs there is a twisting and brevity of the time
sequence as things take place. Things happen in much less time. This
compression prevents us from doing the ordinary things listed on your
checklists. This is a situational warning that means dealing with the
emergency should not (emphasis NOT) interfere with doing what is ordinary as
part of flying the aircraft.
Your best recourse is to have a PLAN. Decide not to spend time on the
high-tech aids. Fly the plane. Manage the basic resources that keep the plane
in the air and on course. Use other pilot cockpit resources or ATC to release
the pressure and divert distractions Use the preflight as a time to leave the
pre-flighter alone. Interruptions during preflight are rude, dangerous, and
inappropriate.
Situational Awareness
Situational awareness refers to what is going on around you and the
aircraft. This is more than just your location. It means being aware of other
aircraft, the weather, fuel, and all the other factors that contribute to
safety. Flying is encompassed by dynamic changes. Unless we are prepared to
deal with and react to those changes we are going to get 'behind' the aircraft
and the situation. Situational awareness requires recognition of where you are
and knowledge of the sequence of events that commonly precede creation of a
problem. Preparation for a specific flight is the most advantageous thing a
pilot can do to avoid unexpected situational problems. By knowing an area and
the airport a pilot can pre-plan the arrival and the communications. Even so,
the unexpected can and will occur.
There are several actions you can take to control the unexpected. Know the
area and the airport. Know your aircraft its performance and limitations. Know
your own abilities and limitations. Slow down the aircraft. Keep track of your
aircraft configuration as to power, flaps, trim and speed. Know how to go from
any configuration to another. Fly heading and altitude. Navigate. Fly assigned
headings and required turns. Have a standardized use of the checklist and
procedure. When the aircraft and navigation are under control, communicate.
State your concept of the problem and follow directions.
Work assertively (see material on assertiveness) to maintain situational
awareness. Locate and note safe clearance altitudes of terrain in the daytime
as a factor you will need at night. Learn local instrument procedure terms and
locations as a VFR pilot. You will be able to avoid these locations when
flying MVFR (marginal VFR). Never rely solely on ATC (Air Traffic Control) to
keep you clear of obstacles or especially aircraft.
If you have not prepared for a flight out of your knowledge area you will
likely suffer from 'geographic disorientation'. It happens to everyone and the
best of pilots. It is most likely to occur in the summer due to a pilot's
belief in what he is seeing compared to what he has expected to see.
Operational causes such as planning, communication, and in-flight distractions
come next. Lastly, the flight environment may preclude seeing what needs to be
seen, hearing what should be heard, and knowing what should be known.
Perhaps the most neglected situation as far as awareness is concerned is the
condition of the pilot. Don't go flying if you have a personal problem.
Family, health, business and personal problem will affect your airworthiness.
Flying can be a great emotional escape but not while you are learning.
Immediate Action Items
1. Fly the plane
2. Go to slow cruise
3. Trim for hands-off
4. Assess the options
5. Check fuel for time remaining
6. Contact ATC or 121.5
7. Select your considered option
8. Use
D. Detect what is wrong
E. Estimate the significance of the problem
C. Choose the safest outcome
I. Identify most reasonable actions
Do take positive action
Evaluate the action taken by finding airport or best off airport for power
available.
Causes of diminished Situational Awareness
1. Pilot is preoccupied, distracted and or fatigued
2. Pilot has a growing concern that something is not as it should be
3. In some principle parameter the flight is proceeding as planned
4. One or more instrument readings is a cause for concern
5. The pilot is spending more and more time in the cockpit instead of outside
Flying Is Not Traumatic
If...
1. You prepare adequately and make use of resources.
2. You make flying a non stressful event.
3. You keep a supply of options available.
4. You know where you are.
5. You do not try to stretch a glide out of ground effect.
6. You hit the ground in level flight.
7. You avoid stalling into the ground.
8. You use all the structure to take the shock, except the nose.
9. You don't go for the ride. Keep doing something.
10. You keep speed and control as long as possible.
Complacency
The other side of the anxiety coin is complacency. This is often the
'it-can't-happen-to-me' syndrome. Complacency can be caused by a sense of
security, fixation caused by concentration on one aspect of the environment,
an overload of assumed responsibility for one aspect to the neglect of others
or most likely ignorance. It's pseudo-agnosia again. We don't know what we
don't know. We are letting "George" (autopilot) or Air Traffic
Control (ATC) look out for our well being. It is more difficult to back
through events that do not result in accidents.
Complacency falls apart and difficulties compound when those crutches we have
relied on are either not there or fail to produce desired effects. Runway
configurations change at different airports, patterns differ from our
expectations, and controls fail to perform as instinct tell us they should. A
pilot spends many hours unlearning instinctive reactions that won't work. A
proficient pilot practices those skills that prove instinctive reactions won't
work.
Judgment
Spent a few days thinking over the teaching of judgment and then consulted
with my bitter-half. Her contention is that you either have common sense our
you don't. I always wondered why I always bet on the "don't" when
playing craps. Nevertheless, I do have some strong opinions on the teaching of
flying judgment. Other opinions to the contrary, I feel that a student pilot
cannot learn the desired judgment with out exposure to the actual situation.
Many aspects of flying require exposure to the mistakes of flying. It is just
as important to be exposed to the mistakes of landings as it is to the correct
procedures. Stalls are taught as flying mistakes to be avoided. The correct
performance is taught as a recognition skill rather than as a performance
skill. So do I teach VFR weather flying. A student pilot who has only been
told about SVFR and flying in minimum conditions will never appreciate the
complexity of knowledge and decisions that need to be made.
Just how much weather I give a student depends upon how he seems to expect to
utilize flying. The student who expect to use flying as an efficiency tool in
his work needs a different approach than the student who expects to be mainly
recreational. I never cease to be amazed by the number of pilots that I give
flight reviews to, who have never done a SVFR flight or flown MVFR. More
than a few have been unexpectedly trapped in these conditions with which they
had no prior training. A student needs to know where the IFR approach routes
and altitudes are. Then he must know to stay away from that area in times of
marginal visibility.
I have always advocated a student learn to fly in the Fall and Winter so that
you get your rating being exposed to adverse conditions and learn to make
fly/no fly decisions under guidance. The S.F. Bay Area where I fly has many
adjacent valleys where meso-scale weather varies greatly. A pilot needs to
learn to read Bay Area weather if an airplane is going to be an effective
working tool. A student who learns in the Spring and Summer is totally
unprepared for Fall and Winter weather. He simply stops flying, only to find
that the hiatus now requires the additional cost of dual to regain
proficiency. A very high proportion of new pilots never fly again. Often
those, who challenge the weather without training, appear in the evening news.
In teaching to fly the weather I have several specific parameters. First, I
always fly toward improving weather. That implies that I fly away from
deteriorating weather. Second, I always leave myself an out and usually more
than one. I know where I am. I have more than adequate fuel reserves. Last, I
am never reluctant to get help. The overly proud pilot who feels that his
training has taught him all that needs knowing, who is unwilling to admit
being misplaced or lost, is just flying toward future trouble.
I was able to deliver four planeloads of clothing to Watsonville flying VFR
after the '87 earthquake while IFR flights were lucky to make one. The weather
was MVFR but good enough for an area-familiar pilot. On TV the next day I saw
the clothes we brought, getting wet from the rain. No one thought to fly in
tarps.
I teach weather flying by adjusting to the conditions as they exist. I do not
fly in 600' ceilings, 2 mile visibility, turbulence, or SVFR for fun. I will
and do fly with students in these conditions to teach them how to deal with
the situation. I teach that the VOR is very limited at low altitudes. The ADF
less so. The GPS is now the future. There is little reason for a pilot to
become lost now. Radar coverage is being extended every year to more and more
airports. The AWOS weather program will soon be widely available. Things are
getting better. However, these advances will cause more and more pilots to
push their experience envelope. Many will be relying on technology when the
only aid available will be the Mark-I eyeball. I teach the eyeball system. The
eye is always looking for options.
Made a dual night flight with a student where there was a dew point
-temperature spread that was relatively close. This meant that fog could form
if it became closer. As we went in and out of other nearby airports we made an
ATIS check of our home field just to make sure that we would be able to get
back in. Was this teaching judgment? I would think so. The ultimate weather
option is to land and arrange other transportation. I have done this more than
once because of ice, winds, turbulence, and aircraft performance.
The relative safety of a situation depends upon pilot experience and
evaluation of the alternatives. Doing a dumb thing successfully skews your
judgment. You think you can get away with it again. What ever induced a pilot
to perform in such a manner? Success? The 'risk management' process is often
so flawed by presumptions of success that failure is inevitable. The pilot is
the leading cause of all preventable accidents. Prevention is a blend of
capability, preparation and attitude. Learning your limits in flight training
is what it's all about.
All activities involve some degree of risk. Flying, due to its
multi-dimensional complexity, has more than its share. Risk can be managed if
the pilot has properly prepared for the flight and is proficient and current
in the required skills. Preparation is mental, physical and mechanical.
Proficiency requires recent flying in aircraft type and weather conditions.
72% of pilot accidents have occurred where pilots are not trained or current
in the conditions surrounding the accident. You can be trained for flying in
minimum conditions. Such training deliberately selected is more productive in
developing judgment than those, which occur as surprises develop.
Since poor judgment is involved in so may accidents we should know that an
unfamiliar situation is a breeding ground for poor decisions. An airplane can
be flown into an abnormal situation faster than your decisions can get you
out. The critical decision is one of determining what is most important? Risks
are often best minimized by landing. Good judgment can be taught and learned.
When in doubt, make the safe decision.
The Source of Good Decisions
--In place procedures
--Experience gives perspective
--We accept Murphy as a possibility
--Experience gives us a collection of options
--Experience is a great teacher if you survive
--Fly the airplane first
--Approach each situation with distrust
--Challenge every decision
--All decisions are temporary
--All decisions are conditional
--Ask questions and make quick decisions
Chinese Proverb:
The wise man learns from his experiences; the wiser man learns from the
experiences of others. Many receive advice, only the wise profit from it.
Cockpit Resource Management
CRM is the integration of pilot, aircraft and environment for safe
efficient flight. CRM is required by the FAA Practical Test Standards. The
pilot is expected to have prepared and organized his materials and procedures
with safety and efficiency in mind. The setting of priorities, monitoring
procedures, and problem solving will be part of your flight instruction. Given
a choice between amount of knowledge and amount of skill related to flying,
take knowledge. Knowledge will allow even the most unskillful pilot to avoid
situations beyond his skill. Reliance on assumed skill has killed many a pilot
who lacked the decision-making knowledge that would have reduced the need for
skill in the first place.
The better you know and utilize the outer performance ranges of a given
aircraft in your everyday familiar situations the better prepared you will be
when these performances are actually required. On a given hard surface you
should know the actual ground roll for several selected gross weights not just
what the manual says they should be. How much altitude will you lose in a
240-degree power off turn at 30 and 45 degrees of bank. Plus a margin, this
knowledge may make possible a return to a departure runway or at least give a
yardstick by which a pilot can measure his ability in a particular aircraft.
It is not just enough to have resources in the cockpit. Charts, tools,
flashlights and computers must be reachable. One form of useful time in an
airplane is knowing where and how to get what is needed. Plan on the ground
for what may happen in the air. Little things make a big difference. Do you
retrace steps while preflighting? Did you "clear" before lowering
flaps? Did you carry all needed materials but especially the checklist? If you
start now, at what time should you be on ground for refueling?
Do you get your ducks in a row before starting the engine? How about
passengers seat belt? Have you decided on what you are going to say to ground
and tower. Which way are you going. Do you have a prepared frequencies list
specific to this flight? Is your map open and folded to encompass the flight
area? You will hold the map up for study instead of looking down. Is your
checklist such that it can be used without looking down into the cockpit. Once
under way. Do you divide attention in and out of the cockpit proportionate to
the requirements of safety. Do you both communicate efficiently and listen
effectively. How do you deal with difficulties of situational awareness? Are
you prepared to admit difficulties in hearing, locating, or aircraft
performance.
An Application of CRM
There is no backup for the altimeter. An inoperative altimeter along with
the VSI indicates a static system problem. The problem can be solved by use of
the alternate air. Another failure is the Kollsman Window setting knob. This
failure tends to be progressive and should be fixed before total failure
occurs.
A total failure of the altimeter can be partially overcome by getting your
altitude information from a radar facility getting readings from the blind
encoder of your Mode C transponder. You would be able to shoot a PAR approach
without an altimeter. Find out where your nearest PAR approach exists. Check
for a Naval Air Station.
CRM Traps
Pilot may reaction emotionally or instinctively
Pilot may have locked in mind-set as to what to do.
Pilot may have overwhelming get-there-itis.
CRM Sequence
(Phone 703 487-4650 for training books)
1. Awareness by sharing sense of a problem.
2. Risk analysis by sharing sense of options available.
3. Decision time with statement of solution
CRM
Newest addition to CRM is Error Management
1. Making
2. Avoidance
3. Resolution
CRM is a team effort used to resolve problems. Where everything in the cockpit
is done the same way, talked about as it is being done, and verified by
another crew member, mistakes are less likely to happen. Tasks are completed
from memory in a flow and then checked by a challenge/response verification.
Even a single pilot can use verbal confirmation of his cockpit activities.
Hearing is a key element in the verification of what is done by the pilot.
Every student pilot should learn to talk to himself as a means of
verification. Anything said aloud is more apt to be detected as an error that
just thinking through a checklist by memory. Learn to talk through your
procedures and maneuvers.
Be doing, talking, and verifying a single pilot or a crew can 'trap' errors
before they multiply into accidents. When in a two-pilot or crew situation,
the right seater will always verbalize any action that he takes to the pilot
flying. Pushing, pulling, sliding, twisting, whatever. Say it aloud.
Mistakes will occur regardless and when they are not 'trapped' accidents will
occur. When an error is committed and not trapped then the full force of CRM
must be employed to mitigate the problem. Every source must be milked for
ideas, suggestions, and assistance.
CRM training uses DECIDE
-- (D)--Detect that a change as occurred.
-- (E)--Estimate the significance of the change.
--(C)--Choose a safe outcome.
--(I)--Identify plausible actions to control the change.
--(D)--Do something.
--(E)--Evaluate the effect of the action.
The essentials of CRM in a situational awareness problem would follow several
scenarios. You are lost, misplaced, confused, or disoriented.
DECIDE
(D)--You recognize that you are experiencing a problem.
(E) You estimate the problem ...........................................(E)
You are unable to estimate
as not serious. the seriousness of the problem.
(C) You continue as before (..............................................C)
You make a decision to:
make a change.
(I) Your sought for point is
................................................(I) You choose to turn,
descend, climb,
just ahead. or communicate.
(D) By not doing anything you ...........................................(D)
Your action does not provide
do something a solution
(E) The sought for point appears........................................ (E)
You evaluate failure and start
where it is supposed to be.
.......................................................the process over again.
Cockpit Resource Management can be taught. It involves a pilot's understanding
of his own life patterns, motivations, stresses, health, and ego concept. The
better you understand yourself the safer you can make your flying. As a child
I was subjected to much frustration due to adult abuse of time constraints.
This has resulted in my feeling stress when time is involved. As a result I
make every effort to allow enough flexibility in my plans and schedule so as
to avoid my own personal stress problem.
Accident factors are
80% the pilot
Examples:
--Pilot's improper calculations which resulted in fuel exhaustion.
--Failure to use checklist.
--Pilots continued operation of the airplane with a known deficiency.
Decision Making After
the Accident
1. Desire to 'get it over' creates tunnel-vision.
2. Hope is to 'get-away-with-it perhaps by leaving the scene.
3. Give student a picture and poise a 'what-if' question as homework
4. "Think outside the box" to learn all available choices.
5. Teach hood 180 procedure to an immediate local landing as weather avoidance
procedure.
6. Refere to AC 60-20
7. Always keep an out.
8. 52% of fatal accidents are caused by poor aeronautical decision making.
Advice from WWII
During WWII new pilots were give a booklet of "Lessons that
Live"
In brief form they are:
1. To live long, plan well. Take advantage of every scrap of information
available that may affect your flight or flying. Chance may get you by;
careful planning WILL get you by.
2. Fly high. On routine flights of all kinds, unless there is some very good
reason for doing otherwise, get up and stay up. The more sky you have below
you, the more time you have to think and act if something happens.
3. Nine out of ten accidents are the direct result of disobeying flying
regulations and the rules of common sense. Experience may be the best teacher,
but along with experience, if you get it the hard way, can come bitter sorrow
and searing memories.
4. No instrument has yet been invented to keep the human brain from cutting
out occasionally. When you're in that cockpit, forget everything else and
devote all your attention to flying your airplane.
5. Beware that period in your flying career when you begin thinking you are
good enough to abandon the habits drilled into you by your flight instructor.
All the piloting ability in the world won't make up for sloppy preparation
before takeoff.
6. Except under very unusual circumstances, there is almost no conceivable
emergency that justifies a departure from the well-defined flying rules and
regulations. Never allow your emotions to overcome your better judgment.
7. Flying an airplane is a full-time job requiring the pilot's individual
attention. A little horseplay now and then may be all right on the ground, but
when you are flying you should forget all that foolishness.
8. Make everything right on the ground and you will have a minimum of trouble
in the air. Always start with everything in your favor. It is deliberately
inviting disaster to takeoff with any doubt in your mind."
9. Fly that last mile as well as the first. "Happy Landings" means
just what it says. Ordinarily there is no reason to take any chances when
landing. At the home airdrome, good judgment and technique are just as
important at the last minute of the flight as at the first.
10. The majority of all airplane accidents are causes by one of two things:
faulty supervision or pilot error. No substantial drop in the number of
accidents can be expected until pilots and flight instructors take it upon
themselves the personal responsibility of preventing them.
11. Ignorance is sometimes blamed for pilot troubles. Ignorance is never an
excuse because the training program required by the FAA is thorough. A pilot's
ignorance is a poor excuse for errors in judgment, plain boners, and faulty
planning, and the lack of alertness.
12. A good pilot knows his own limitations and the limitations of the
particular plane he is flying. If a pilot is lacking in experience, he is a
fool not to accept the advice of those who know.
13. Carelessness in checking your aircraft and its logbooks is a cardinal
sin of flying. Many an accident would never have happened if the pilot had
taken the simple precaution of checking the condition of the airplane before
taking off.
Precautions
1. When radar points out traffic. Acknowledge...wait 30 seconds and advise
them that you will accept a traffic avoidance vector if you have not found the
traffic. Always include your altitude and position when you communicate.
2. Watch out for 'position reports'. Many pilots habitually call their
position by what they see ahead rather than what they are over.
3. When a non-radar ATC gives you a traffic advisory, or you hear an aircraft
give a position get on the radio. Give not only your position but also your
altitude. You can miss aircraft by altitude as well as by position especially
if you are at an unfamiliar airport. Ask ATC to query the other aircraft for
his altitude.
4. I try to avoid reporting directly over common reporting points. It is far
safer to report one-East or such from the point. The offset may save your
life.
5. Any time you are flying within 3000 feet of the ground, you will be better
off flying at altitudes that do not end in three zeros, five and two zeros or
any number ending with 00. What I have in mind is altitudes similar to 2750,
2350 and 1850 AGL etc.
When to Get Fuel
With the advent of LORAN and GPS more and more pilots are being fed
accurate info as to when and far away they will arrive at any given point. As
they become gradually aware of an inaccurate fuel gauge and a fuel remaining
time deficit there arises a conflict. The closer the destination or planned
stop the more difficult will be the pilot's decision. I my planning I
pre-decide that I will not press on, I will land, refuel and pick a new 'next'
refuel stop.
One device for never running out of fuel in an aircraft that gravity feeds
from both tanks is to switch to the last tank reading a quarter full. Run that
tank dry and then land using the other tank. This procedure should be
practiced to confirm how much fuel remaining exists at the quarter full
indication.
By keeping accurate track of your ground speed and time flown on your route
chart you can make your refuel decision earlier. The more complex your
aircraft the sooner you must review the restart procedure so the brain won't
fold up on you.
Defensive Flying
The vast majority of pilots, I am familiar with, tend to be aggressive in
their flying; offensive that is. This requires that the remainder of
non-offensive pilots be defensive for survival's sake. As in football, defense
wins more games than offense. Defensive flying begins before you get to the
airport. You have checked the weather, NOTAMS and your personal flying kit. On
arrival, after surviving the traffic travail, you have checked the runway in
use; surface winds, and confirmed the airworthiness of your airplane and its
ability to make the planned flight. Statistics indicate that at least 25% of
flight problems are due to inadequate flight preparation. It's all called
preflight.
The pilot who limits his knowledge to the things that he is supposed to know
is headed for trouble. For everything you are supposed to know there are at
least ten related nice to know things related to what is happening and going
to happen to you and your airplane. It is not just enough to tend to your
responsibilities; you must be prepared to protect your interests by being
aware of how others are doing their job. Your best self-defense is directly
related to your total awareness of what others are doing close to your
airspace. Said another way. You, of necessity, must rely on the performance of
others. Likewise, you of necessity must protect yourself from the malfeasance,
misfeasance and nonfeasance of others. Just like driving in traffic.
Our accident driven FAA and its FAR whip can be supplemented by quite a
collection of planned flying activities. Annoy ATC a bit by avoiding the
middle of airways. Don't taxi into position on the centerline. Offset a bit so
you can see what coming. Don't taxi on to the runway without clearing the base
legs. Both of them. Fly altitudes, weather and places where others are
unlikely to fly. When weather's bad consider reserving the top thousand feet
of a Class Delta airspace footprint for doing airwork. Another choice I make
is under the shelves of Class Bravo. You can get radar advisories while flying
in airspace others avoid. Proper use of the radio can get you many ATC
preferences just by asking for 270 departures, direct entry into downwind,
modified base, crosswind runway, and more. Even when crossing 7000-foot
mountains I like to fly within 3000 feet of the terrain where any altitude is
legal. Statistically, you are more endangered flying by the hemispheric rule
than as a renegade.
Being a defensive pilot requires making an assumption. Assume, in every
situation, the worst possible scenario is going to occur. The winds are never
as forecast. Weather avoids being predictable. Fuel is always above planned
consumption and fuel remaining is less that desired. There are more headwinds
than tailwinds. Bad weather arrives sooner; good weather may not be there at
all. The skeptical pilot is a survivor. The optimist expects too much and will
get too little. The skeptic will only have himself to blame for what happens.
Event Management
This is an emergency process where the first thing you do is 'ignore' the enunciator
light. You disengage from doing anything and wait to see if there
are any obvious symptoms of a problem. Then you prioritize what you are going
to do.
Wildlife on the
Runway
The FAA maintains a database on wildlife strike occurrences. Since 1983,
there have been 245 deer-related accidents that have caused serious damage to
aircraft, averaging about $96,000 in damage per incident for the ones who
provided estimates. Wildlife strikes should be reported to the FAA on Form
5200-7, which can be found in the "Aeronautical Information Manual"
as Appendix 1. For more
Survival Revisited
The nature of uncertainty is what makes piloting a field of considered
risk taking. There is no certainty in any pilot decision only a degree of
probability. The trained pilot is, or should be, well informed in recognition
of the wide
collection of hazards existing in aviation. A partial list of these would be
weather, airspace, electronic, mechanical, instrumental, geographic,
topographic, intestinal, attitudinal, social, physiological, medical, personal
and governmental. On any flight every one of these problem area poise a
decision making oppportunity. One element that exists in common to all of
these is time. I will touch briefly on some of these here and the rest at a
later time.
The element of time as a safety factor is the essential element to flight
planning. While every accident is an
accumulation of events of variable time intervals, the accident itself takes
but a moment. Preparation for an
accident is usually for survival afterwards, while the need is for prevention
or evasion. The actual event offers
little time for either prevention or evasion. In moments, the placid
smoothness of controlled flight becomes
erratic, hectic and uncontrollable. Power either runs amuck or ceases
completely, configuration becomes the
speed control most likely to be effective. All flight efforts should be to
maintain the sufficient control required
for normal landing attitude while moving as slow as possible. At the present
time there is no way to accurately
determine just what the pilot did in the cockpit to cause an accident.
In general altitude is your friend if you have control. On takeoff use Vy for as long as practical. Fly airport vicinity routes and high tight landing patterns. Learn how and where to look for traffic and fly at altitudes somewhat off the even thousands and five hundreds. On the other hand the closer to the ground you are the slower you can maintain controlled flight the better. Aircraft structure is designed to crumple and absorb shock use it to your advantage while keeping yourself from bouncing off interior surfaces.
I would suggest that we not be over concerned about midair collisions. The laws of probability seem to indicate that looking and not looking will have little effect on the number of annual occurrence. Also, half of the people involved in midair collisions survive. There are far more effective use of time and money in aviation safety that mid-airs and runway incursions. I have always made a point of clearing the final and base approaches to a runway before taking the runway for takeoff. Yet, hardly a takeoff by me is not preceded by an aircraft departing without such a clearing procedure. I have avoided an accident by this procedure only twice in an estimated 20,000 landings. There is more than luck in becoming an old pilot.
It is all too easy to expect government regulation to take the element of chance out of flying. There is overwhelming evidence that governmental lethargy is directly responsible for thousands of aviation deaths. The vast majority of these were operationally weather related to WWII and not due to combat. The ILS existed in 1930 with the same ability as it has today, yet it was never accepted by our aviation agencies as a basic safe landing procedure until well after 1950. A present example of this lethargy now exists in our ability to confirm the accuracy or inaccuracy of the VOR through the use of the GPS. Far less accurate methods are required by governmental rule.
The day is here where the use of electronic ignition, turbine power, composite construction, and satellite navigation will be factored into general aviation regardless of bureaucratic resistance. There is no reason to believe that anything the government has done regarding the standards of medical or aircraft certification have appreciably improved aviation safety. On the other hand there is every reason to believe that the fear of change, the fear of responsibility, and avoidance of initiative have inhibited progress and safety. In the meantime the pilot's best safety option is to play it safe by making the most conservative decision.
Pilot failure
Causes Engine Failures
--Aircraft engines are not prone to failure regardless of make
--Major problems are lack of use and exterior weather
--Engines are most likely to lose power because of the pilot.
--Fuel problems can only be prevented by the pilot.
--Carburetor ice can only be removed or prevented by the pilot
--Those who have had engine failures are more aware that the event can happen
again.
--Confirm fuel to engine before starting
--Be ready to abort if things don't sound, feel or seem right
--Get as high as you can as soon as you can
--Fly an airport vicinity route and change tanks when approaching airports
--Fly at altitudes that allow restart time
--Fly by time not by gauges
--Single engine night flight raises the odds against you as does terrain,
visibility and fatigue
--Shallow approaches are inherently more dangerous than steep approaches,
especially at night
--Make your own 'level of awareness' list to read occasionally
The When, How
and What to Do
--Trust your preparation and training by knowing what to do, doing it and
checking afterwards.
--Doing the right thing on time and luck will make the difference between
success and failure
--Training should consist of simulations at various altitudes, winds and
locations
--Decisions are easiest at low altitudes because your options are limited.
--First, fly the plane
--Trim all the way nose up for maximum time in the air and adjust for
penetration as needed.
--Exact Vref glide speed is 1.3 of the actual weight.
--Save all the altitude possible while looking for a place to land.
--Perfect is usually not available so pick least undesirable near source of
help
--Do not let wind blow you short of intended field. Being high is more easily
resolved than being low.
--Try to restore power buy moving every engine control, fuel control, air
control, and spark control.
(I pulled Mixture way out at 800' on engine failure only to have engine start
again. Stuck carburetor float.)
--One magneto may work when two will not, open alternate air,
--Communicate on known local frequency or 121.5 and say everything three times
--Squawk 7700
--Don't quit trying.
--A larger landing space is always preferable to anything small.
--Keep close but not too close. Practice power-off approaches to learn things
you need to know.
--Save flaps until last.
Emergencies
Revisited
--FARs allow deviation from regulations as required to meet the emergency
--Only upon the request of an FAA agent are you required to send a written
report
--There is no time requirement either for the FAA or the pilot to request or
submit the report.
--A pilot who is given ATC priority in an emergency shall on ATC request
submit within 48 hours a full report.
--FAR 91.123(d) (above) has three requirements, an emergency, ATC priority and
ATC request.
Training Your
Instincts
--If you become concerned about a situation it is your instinct at work.
--Concern is a sign that you should get training.
--Training gives you methods to determine the degree of risk that exists.
--Training prepares you to do the right thing when the wrong thing happens.
--Training reduces the concern factor by increasing the options to be
selected.
--A decision not to fly because of ice, fog, thunderstorms and high winds is
always a good one.
--In flying, life-saving behaviors are better directed by trained reflex
rather than by instinctive reflex.
--Training should be directed towards concept, procedure, or skills needed to
deal with events.
--The known should be fuel quantity, time in tanks, weight limits, balance and
performance limits.
--'Unknown' can only be trained for if properly communicated
--Good instruction includes anticipation of the 'unknowns' likely to exist for
the student.
--Good instruction includes teaching/allowing the student to communicate his
'unknown' concerns.
--Proper training allows the student to develop the knowledge and skills to
deal with concerns.
--Flying without concerns are only when pilot has accepted the existing risks
and his ability to cope.
--Frequent flyers are less likely to have concerns
--Dedicated practice is the best use of flying time
--Once a month dedicate a flight to currency, new places, POH extremes and the
seldom used.
--Any sense of trepidation about any safety aspect is reason to make a
significant change.
Low Level Options
--Viable option if paid to fly low.
--Average of five deaths per month.
--Accident rate is 60 percent higher in Alaska
--Most often legal but not wise.
--Low altitude mixed with ignorance is a losing situation
Autopilot
--Is untested and used often
--Not on checklists
--Checklist does not include failure modes of autopilot
--Every make and model difference may have a different failure mode.
--Autopilot maintenance is not normally a part of the annual.
--The autopilot disconnect on failure does not always work.
--Some autopilots are unable to adapt to abrupt manual over-ride.
--Late models of autopilot will fail when the altitude encoder fails.
--Some autopilot 'bridles' get loose with age and are unable to keep up with
aircraft oscillations.
--First level of operation should be all the options to disconnect autopilot
--Not usually a part of renters checkout
--Different brands and series have variegated failure modes
--Altitude hold feature can result in structural failure when some inflight
failures occur
--Autopilot depends on other instruments to set performance.
--Auto pilot operation are either horizon (position) bases or rate based.
--Horizon based autopilots usually use the attitude indicator as a driver
--Gyro can tumble, vacuum can fail
--Disconnect autopilot in turbulence but only after gaining manual control of
yoke and scan.
--Rate based autopilots work off the turn coordinator along with an
accelerometer.
--All electric but alternator failure is backed up by battery to allow
reaching VFR.
--Altitude hold of autopilot uses electric trim. Increased risk of if pilot
uses yoke.
--Any autopilot failure at speeds over Va can cause aircraft to self-destruct.
--Autopilot failures should be practiced
--Reliance on autopilot will reduce manual proficiency.
FIRE
Causes
--breaking of hoses, fittings, heat deterioration, chafed wires, piston
holes, preignition (Sets oil on fire)
First Sign of Smoke
--Master off, selector off, mixture off --Fly the plane
--Turn off air vents--Fly the plane
--Sideslip--Fly the plane
--Get down as quickly as you can--Fly the plane
--Open cowl flaps, dive to blow out fire--Fly the plane
Simulation
Problems
There is no assurance that our training will be effective in a future
similar situation. Even slight changes in the situation can elicit reactions
that are inappropriate. Anticipation is an essential to flying proficiency but
when it is replaced by expectancy unforeseen problems arise. All too often we
use training procedures that do not properly prepare a pilot for the real
emergency or situation. A classic example is the touch and go transition which
is a contrary procedure from that of a normal landing and takeoff.
We are not allowing students to experience the stress situations that are common to all flying. The turbulence, wind gusts, engine hiccups, radio difficulties, or cockpit problems... Talking and dry-runs are not sufficient. All of these require the pilot to think first and act later. The conditioned response is very likely to be the wrong response. A switch or lever is NOT released or considered completed until verified by instrument and visual check where possible.
Simulated Engine
Failures
--Recommended method is reduction of power to slightly above idle.
--Periodic power increases during descent is acceptable safety precaution.
--About eight engine failure simulations result in actual accidents every
year.
--All the accidents were judged preventable with exercise of proper judgment
of ability.
--Recommendation is that no simulations be made below 2000' and then treated
as an actual
--Using the mixture is not recommended as means of causing engine failure for
several reasons
--Turbo engines are subject to shock cooling so power failure simulations are
not recommended.
--A magneto shutdown will leave fuel in the cylinders and a moved propeller
could fire a cylinder.
--The practice of shutting down an engine with mixture rather than magnetos is
to protect people not engines.
Knowing the Risks
--IFR accidents are nearly always fatal.
--An impact from the side will kill you if it exceeds 9G.
--An unintentional spin is a stall accident that has an 82% fatality rate.
--The human body can only survive a 15G vertical impact.
--Rear facing seats allow the human body to withstand an 83G impact.
--GA crashes: 49% of occupants have no injuries; 18% have minor injuries; 22%
died.
--90% of fatal injuries are caused by impact of bodies striking aircraft
structure,
--Fatalities result in the 30th percentile when occurring in urban areas and
trees.
--1/4 of mountain accidents result in impact deaths. 4 in10 resulted in
serious injuries.
--An accident that occurs in a field is 75% less likely to cause impact
related deaths or injury.
--A single engine ditching accident has less than one in ten chance of
fatality if impact is controlled.
--Survival is most assured when body impact is less than 45G straight ahead
while aircraft is under control.
--A passenger has every right to expect a pilot to conduct the flight without
compromising safety.
--Any use of the autopilot should be delayed until at a safe altitude.
--Unless required by special circumstances FAA records are destroyed after 30
days.
--An aircraft mechanic is required to sign off any maintenance performed.
--Nothing excuses the pilot in command from having an in depth knowledge of
the aircraft he is flying
--The PIC bears the sole responsibility for the safe conduct of any flight.
--Aviation's maintenance system is built upon trust that parts and workmanship
are within regulations.
Airplanes Can Be Safer
Made to
--Fly slower under control
--More controlled landings
--Protected fuel tanks and lines out of cockpit
--Improved visibility
--Digital engine control
--9-G seats and restraints
--Improved crash worthiness
--Controlled emergency descents
Black Box
Update
I think everyone is well aware what the black box does on an aircraft.
Mind you, we only hear about them if a plane crashes. It kind of provides a
postmortem. A little Canadian company has the technology to replace the 'black
box' and actually provide the data real time and in such a way that problems
can be detected before they happen.
Opinion on Electronic Failures
It is good to know that most folks have a high confidence in the new gadgets.
But I have been speaking from my own experience dealing with the communication
systems (hardware and software) used in the major networks around the world.
At least one metropolitan 911 systems ran over our solutions.
Vast majority of our customers think our stuff can never fail, but there
always a few ones in big big
trouble, and we can never eradicate these sources. There appears to be a
misperception of software system reliability. It is different from
hardware/mechanical systems, in that a mechanical/electronic
system's failure rate is much higher at the beginning of the life cycle, and
reduces quickly thereafter, before it picks up quickly at the "end"
of the component's life cycle.
Software, however, exhibits a different behavior. "Older" software
appears more "reliable". But its
reliability completely relies on the test that can exercise all the possibly
logical decisions given all the combinations of the input to the system. This
is why a software logic of 1+1 =2 will never fail
once it is shown to work at the first time; however an un-exercised decision,
e.g. due to an unusual
sequence or timing of input, is the most uncertain and dangerous. There are
cases when a system can completely fail due to a seemingly benign diagnostic
print statement accessing a wrong part of the memory address space.
The statement is never executed unless an unusual situation arises. Since it
is only reached in unusual situations, it is hard to get to in the tests since
humans are not well suited to predict the unknowns...
The more complex (more functions) the system, the more likely it can fail in
the most catastrophic way. I took some reliability theory courses and none of
them can be applied to software system algorithmically.
Back to the phone/computer communication systems, they are extremely tough
systems to maintain, and they do fail (the old TDM switches were more reliable
mostly due to the lack of functions, and disability in adding features). The
network service providers have lengthy procedures to qualify the
software systems they deploy. Note that those are done at the customer side,
beyond the vendor's
delivery. And they still fail.
Two important observations:
One, the airplane glass cockpits seldom go through the rigorous tests
on the customer side after they are delivered (well they do, with the pilots
lives on the line after deployment);
Two, the added convenience/reliance of the "extra awareness"
gives a false sense of safety, it only feels that way when it works, and once
you get used to it, it is even more dangerous than if it were never there!
Also let me point out that the newer electronics, unless especially designed
for reliability, will not be more reliable than the old ones. One example is
the number of rewrites in the consumer digital camera flash memories. The
single cell endurance is much shorter now, and constant repairs have to be
done to maintain the appearance of a "working" disk, for up to
3k-10k rewrites, depending on the vendor. I doubt the low budget glass cockpit
designers can gather enough reliability data for their products before the
next "upgrade" is necessary for their survival in the market place.
Many people know Microsoft stuff is not reliable, but there are other software
that can be more unreliable. The glass cockpits for small airplanes will be
among those.
Pre-schooler
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Management for Pilots