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Old 6th Dec 2011, 14:36
  #338 (permalink)  
fotoguzzi
 
Join Date: Dec 2008
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[Not a pilot] Should there have been an anticipation that the backup system would fail too?. My understanding from previous posts is that this double-failure is unique to the type and perhaps unique for all aircraft with electrically-operated backup landing gear systems.

Re: circuit breakers. (Sorry for using household terms.) The only way that I can conceive of inadvertently popping a breaker (based on the photograph only) is by hooking the "button" with the strap of a bag. Is there another way?

Also, I recognize that there is a wide variety of breaker types, but would someone please explain how many positions the "button" could be in? The most I can conceive of would be:

- Pushed in and connected
- Pushed in but internally disconnected
- Popped out a bit and disconnected
- Pulled out all the way and disconnected
- Intermediate (say from being bent or sticky) and either connected or disconnected

- [just thought of:] held pushed in by a bag or something and either connected or disconnected

Thank you.

Last edited by fotoguzzi; 10th Dec 2011 at 13:28. Reason: followup question - please delete if a distraction
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