Friday, October 14, 2011

Air France 447: Critique of Otelli's French book

Heard about the book today. Jean-Pierre Otelli who specializes in aviation safety, publishes his book "Piloting Error, Volume 5" today.

But in my opinion, he only re-analyses the facts collected in BEA's report. I believe that the BEA's report is seriously flawed and the book adds little to mishap prevention.

Read my many articles in my other safety blogs to learn more.

http://safetyforecasts.com/
http://bettersafeaviation.blogspot.com/

Would you like proof that BEA's investigation is flawed?

Simple: there is little if any recommended corrective action contained in the report, that, if followed, would have prevented this mishap. Rather, the book and report appears to center on finding fault, assigning blame and extracting tribute for damages. So, the investigation is really a legal investigation and not a Safety Investigation. I have explained in the blog that the only value to a Safety investigation is to find ways to prevent a recurrence.
It appears to me training is weak at AF as well. So, that is a managerial responsibility and regulatory duty. Remember that this crew was certified by the airline's training dept and national aeronautical regulators before they were assigned to operate this flight. If their performance as a crew and as individuals was substandard, as alleged in the BEA's report, then that would be a direct indictment of the training and certification authority credibility, would it not?

From my background training experience, when we first learned basic and radio instrument procedures in basic jet training, an important segment of that training were procedures to employ when some of the instruments failed. Some of this training focuses on the failure of attitude and/or directional gyro equipment and is called partial panel procedures. Some other procedures focused on loss of pitot-static instruments, some or all and teach you to remain in stable flight using attitude instruments and standard engine power settings. Other procedures cover magnetic and/or directional gyro or heading instrument failures, still others cover what to do if part of your navigation instrumentation fails.



We practiced all of these procedures this right from the beginning. Along the way with every new aircraft, with every new organization, these procedures remained a significant part of regular training. At my last sim/training session a year before retirement, we practiced these procedures and focused especially on the loss of pitot-static instruments. We trained heavily on this.
So, were these AF447 crew members trained by AF in this area? There certainly appears to be a question here. However, does the report by BEA or the book by Otelli investigate this?

Wednesday, October 12, 2011

AF 447: Pitot Tube Loss Procedures?

The loss of pitot static instrumentation is an emergency for which commercial pilots are or should be trained. In the case of the loss of pitot static instrumentation, a general procedure is to use the instruments available that are not dependent on the pitot static systems or to use back up pitot static systems and instruments. In either case, the safety of the flight is possible and the crew should be able to maintain safe flight until either the aircraft can be moved out of the icing conditions which are often the cause of the loss of pitot static instruments or the aircraft can be moved to VMC so that the crew can land the aircraft with use of available instrumentation and procedures.

In the case of AF 447, there appears to be a procedural issue as well as an equipment failure. That said, the crew I am sure was more than capable of operating in the condition where the pitot static system failed. Why did they not?
Were the clues to determine this condition not available or masked or conflicted by other clues?

I wonder what each commercial pilot reading this and other reports thinks? We have read what BEA thinks and their reports are not credible.