Originally Posted by
LME (GOD)
For all those armchair mechanics posting drivel....Intermittent wiring problems are difficult to find on standard systems, throw in a prox sensor it just makes it harder to isolate.
No airline want repeated air-interrupts, but setting up ad-hoc maintenance test flights in Europe is very difficult to accomplish when you dont have crews available that are flight test qualified.
Yes, intermittent wiring issues can be a nightmare to troubleshoot. I got a few ataboys over the years when (due to my detailed system knowledge combined with the description of the symptoms) I was able to figure out where to tell them to look for the problem (usually a chaffed wire bundle).
That being said, when you've had more than one air turnback for the same problem, I'd think they'd want to really confident they'd corrected the issue before they released the aircraft back into line service.