|Quoting zeke (Reply 43):|
As for promulgation of FCOM updates, we also have them by email, electronic, and hard copy updates, However that is normal for any update, often they come through every week or two.
I think you missed my point. I am not talking about any mundane "update" where procedures have changed, or responses where changed from CHECK to SET.
I am talking about during an incident investigation be it an official governmental investigation, or an internal airline investigation ... something pops up that can not be explained, or worse, shows a trend. I used the A330 with Thales probes as an example as it was recent. Yes, now we know the cause, and yes now we know what brought down AF447 ... but until the CVR/FDRs were found, we didn't ... and speculation was rampant.
There were several A330/Thales incidents during airline operations that did not become public until the investigation of AF447. As information was spread worldwide, airlines were advised, Airbus revised procedures ... and here, A330 crews were updated daily! We realize now that it may have been "silly" as you state, as it may well have been a red herring, but during the investigation we did not have the luxury of knowing that!
Another excellent example was the B737. When the UA
B737 went down at COS
, it was "curious" at best. I recall, as I was a B737 F/O at the time. Other than normal cockpit talk and speculation, it wasn't given much thought. Then, 3 years later, I was a B737 Captain, and the US B737 went down in PIT
under similar circumstances. Now it became a HUGE issue. One of the safest and most common airframes now was suspected of having an Achilles Heel.
Again, other incidents (there were several) became public, procedures were changed, and in this case, jet upset training and recovery became a part of recurrent simulator training. Also, the majority of B737 operators now advised their crews to "look out" for something similar. And several crews did see things that otherwise would have been overlooked that aided in the investigation.
So fast forward to today. A UA
B767 is alleged to have had a total navigational error. I still can't see how, but we'll go with this. And as you state, there have been similar occurrences in the past. If this actually did occur there would be an investigation. If during that investigation it was shown there is an Achilles Heel with the aircraft or procedures, it would not be a secret! Everyone would know about it, at least at an internal level.
Boeing would be issuing statements with possible solutions and possible procedure changes. Also, Boeing would ask B757/B767 crews to "look out" for various hints that it may occur again.
That is why I am suspicious about this incident. If all we have ever heard about it, is some anonymous blog ... did it really happen?
Just because I stopped arguing, doesn't mean I think you are right. It just means I gave up!