Originally Posted by
ScepticalOptomist
Probably varies a little by type, however our company manuals state:
“any critical system failure precludes ETOPS operations and requires a diversion if within the ETOPS segment.
Critical system failure is:
- an engine failure
- only two AC power sources remaining
- hydraulic system failure that seriously restricts the operation of the aircraft.”
This has basically been the same across all twin jets I’ve flown with ETOPS capability.
Hope this helps!
Indeed, thanks for the input