As the hearings into last summer’s crash of Asiana 214 at San Francisco International Airport get underway, I can only hope that they will result in a real and meaningful look at the relationship between today’s pilots and their modern aircraft. I expect though, the result will once again be platitudes like “over reliance on automation” and the obligatory mandate for stricter policy and more procedure. Standard operating procedure (SOP) is essential in airline operations, however, it should be used as a tool and SOP compliance should never be viewed as THE objective in establishing a safe operation. The system will try to legislate and regulate effective decision-making through narrowly targeted training scenarios, more SOP and increased spending on airport navigation aids. It will succeed in giving the appearance of making the airline industry safer while actually failing to address the root cause of this type of accident, ineffective threat identification and mitigation.
In 1996
the FAA Human Factors Team issued a report on the interface between flight
crews and modern flight deck automation. It was a result of a 1994 A300 crash
in Nagoya as well as 1995 accidents in Cali and at Hartford, CT. This
FAA report is an exhibit in the NTSB Docket for Asiana 214. The HF Team’s report clearly articulates
their recognition that it was essential to look beyond flight crew errors for a
deeper level of understanding of the issues.
After reading this report it would appear that almost all of the
concerns raised in 1996 were still contributing factors Asiana 214 and UPS 1354
hull loss accidents. Why, 20 years
later, are we still unable to manage human error?
A
friend of mine said this reminded him of the scene in the movie, A Few Good Men, where well meaning policy
and procedure (Lt. Daniel Kaffee) collide with operational realities (Col.
Nathan R. Jessup) in their iconic courtroom scene.
Jessep (Jack Nicholson): You want answers?
Kaffee (Tom Cruise): I think I’m entitled to them.
Jessep: You want answers?
Kaffee: I want the truth!
Jessep: You can’t handle the truth!
Kaffee (Tom Cruise): I think I’m entitled to them.
Jessep: You want answers?
Kaffee: I want the truth!
Jessep: You can’t handle the truth!
What is
the “truth” here? Let me see if I can
explain.
There
are two fundamental components to aviation, the airplane and the crew. The advancements in aviation safety have come
from improvements to these two components.
The airplane was first. With the
advent of the digital age, avionics technology was able to assist the airplane
with a truckload of very reliable hardware programmed with “if-then” software
meant to help with crew awareness and workload.
As technology advanced so did the amount and sophistication of these
hardware/software devices. Later in the
evolution came improvements to the crew, or human, component. Crew improvements came from the development
and introduction of CRM, Crew Resource Management. CRM soon became the “poster child” for all
progressive flight operations. Unlike the
technological advancements to the airplane, CRM was not universally adopted in
a standardized manner and therefore lost much of its value and influence. Each flight operation developed and trained its
own CRM objectives and methods. CRM
became synonymous with teamwork and communication rather than improving the
crew effectiveness component of aviation safety. A member of the 1996 FAA Human Factors Team
and the “Godfather” of error management, Dr. Robert L. Helmrich, from the
University of Texas, along with James Klinect and John Wilhelm, wrote about
this deterioration of CRM in their paper MODELS OF THREAT, ERROR AND CRM INFLIGHT OPERATIONS.
AQP,
the Advanced Qualification Program, implemented to improve training for airline
crews mandated two, among other, essential elements necessary to align training
with line operations. CRM and Advanced Simulation were required. They were included for very important
reasons. CRM for the very explanation
Helmreich et al stated, “CRM is an active process
by crewmembers to identify significant threats to an operation, communicate
them to the PIC, and to develop, communicate, and carry out a plan to avoid or
mitigate each threat.” Advanced Simulation is essential because it is
meant to create a flight deck environment identical to the real line operations. The intent was to provide crews an
opportunity to face realistic scenarios and effectively debrief their
experience, not to only perform according to preplanned scripts. Unfortunately the industry has not embraced
the intent of line oriented simulation as described in a manual for debriefing simulator events by Key
Dismukes, former Chief Scientist for Aerospace Human Factors in the Human
Systems Integration Division at NASA Ames Research Center, with Lori K,
McDonnell and Kimberly Jobe from San Jose State University. The first sentence
of the introduction states, “How much
crews learn in Line Oriented Simulations (LOS) and take back to the line hinges
on the effectiveness of the LOS debriefing.” Most simulator training is still about “what”
and very little time is spent learning the “why”.
The
ultimate result of this 20 year safety evolution of airplane and crew is the
huge bureaucracy called SMS, Safety Management Systems. SMS has tried to do to the airline industry
what digital technology has done for the airplane, program the system with
“if-then” software (procedures and policy).
The concept was good. The goal
was to look at risk from an integrated perspective. Unfortunately, there are so many layers, and
competing agendas, that like all big bureaucracies there are lots of people
doing lots of things but accomplishing very little. One of the things that SMS has been able to
accomplish is to communicate to crews that “they, meaning the SMS group” are
the genesis of threat mitigation strategies.
The problem is that SMS threat mitigation strategies are seldom, if ever,
timely or appropriate. That is because
SMS can address overall risk of an organization, but it cannot manage individual
threats very well. Threats, which are
generally defined as events or errors that occur beyond the influence of
the crew, increase operational complexity, and must be managed to maintain the
margins of safety, can only be identified and managed tactically by the
crew. The crew can and should rely
heavily on procedural guidance for their threat mitigation strategies, but all
the procedural guidance, all the SOP the airline can come up with is worthless
if it is not effectively applied. The
bureaucracy has lost sight of the fact the machines can be programmed, humans
cannot. You can teach humans what to
think about, but you cannot program humans to think only in “if-then” binary patterns. Policy and procedure is only as good as the
judgment and decision-making used to apply it.
The
identification of threats, and their mitigation is the most fundamental of all
aircrew responsibilities. Conventional
wisdom, including most flight standards and training managers, has replaced
threat management with procedural compliance.
The system (airlines, regulators, etc.) arrogantly and narcissistically assumes
it can write a policy or procedure for every condition and then naively thinks that
all crew members can and will comply. Airline managements are reticent to spend money on
training that is not FAA mandated or have a corresponding dollar value.
Pilot bulletins and computer-based learning have replaced facilitated
workshops where line pilots are allowed to discuss their experiences and relevant
operational safety issues. Chalkboards and instruction from experienced
pilots has been replaced with PowerPoint presentations packed with dozens of
slides that are just “cut and paste” text and pictures from the flight manual.
Pilot associations have their share of responsibility as well.
They are quick to point out any deficiencies in the system, but at the
same time are only interested in looking at human factors as a way to avoid
responsibility when mistakes are made. They need to be willing to look
introspectively at human factors in an effort to raise the level of pilot
performance, i.e. threat identification and mitigation. There have been some airline operators with robust TEM
programs, however, through budget cuts and/or mergers these programs have been
trivialized or abandoned altogether.
If the airline industry
is really serious about making flight operations safer it will increase its
efforts to improve crew effectiveness not just pilot performance. Training and evaluation must be outcome based
not just procedure driven. Crews should
be trained and evaluated using the LOSA paradigm. That paradigm focuses on the values of crew
awareness and self-correction where they are actively engaged with the airplane
and environment so they can identify and mitigate threats and errors in a
timely manner. These instructors,
evaluators and crews encourage and accept peer feedback in an effort to achieve
a safe outcome. There are only three
responses to a threat or error; it is not identified, it is identified and not
mitigated or it is identified and mitigated.
Two of those responses require luck or things outside the crew to
provide a safe outcome. To ensure a safe
operation, isn’t it worth at least as much time and effort to train pilots to
identify and mitigate threats and errors as it is to teach procedure?
That outcome-focused approach
is in contrast to the still employed, “I know more than you do.” ego centered
dynamic utilized by many flight standards organizations. We must get away from
the ancient methodology of training and evaluating performance based on
procedural compliance and focus on safe outcome. The equation, Procedure + compliance = safe
operation only works in an academic environment. Intentional and unintentional non-compliance are
unavoidable realities. You might reduce
one but you never eliminate the other.
Good piece Jim! I think Threat and Error Management principles can provide a common bridge between system safety hazard identification/analysis and the mitigation techniques used to reduce the risks. The taxonomy provided by the LOSA collaborative could be employed throughout all the voluntary safety programs/SMS to effectively identify and analyze the hazards/threats and errors. Better risk assessments could be made and provide more justification for technological mitigation strategies to eliminate or reduce the risk. TEM in the cockpit is the last line of defense behind SOPs. Teaching these concepts in the Sim is tricky, especially error management and requires a paradigm shift for some.
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