Originally Posted by
Bashibazouk
...of how airplanes get a poor reputation. In this case based on half-remembered anecdotes.
Well if you are looking for hard facts, the internet forums are probably a pretty good to shy away from I'd say.
Those pilots took off after starting the engines on external power (specifically forbidden by the POH.) When they retracted the gear, the transient on the bus caused both engines' ECUs to reboot, shutting both down
Hate to hear about such examples and it seems that you know some details. WHY would pilots WANT to start on external power if not required. Heck...I look for ways to be able to NOT use externals sources (air or power)!
This resulted in an AD that added batteries that are diode-ORd to the ECUs. If the main bus sags, the ECU batteries keep the engines running for 30 minutes.
Well...if the above it true, it is hard to 100% safeguard against stupidity, but this sounds like a good step towards that goal.
USMCFLYR