[ME-122] If both alternators fail in flight (Dual Alternator Failure) in the DA-42, what actions are taken to conserve battery power and how long will the remaining power last? (Ref: SOP Page 67)
A) Switch Engine Masters (2) OFF and glide to a landing
B) Switch Alternators (2) OFF, Avionic Master OFF, Pitot Heat OFF, and all non-essential lights/equipment OFF; essential PFD instruments and ECUs are powered for at least 30 minutes; land as soon as possible
C) The Emergency Battery powers all cabin systems for 3 hours
D) Set VOTER switches to B to re-engage the alternators
Show / Hide Correct Answer
Correct Answer: B) Switch Alternators (2) OFF, Avionic Master OFF, Pitot Heat OFF, and all non-essential lights/equipment OFF; essential PFD instruments and ECUs are powered for at least 30 minutes; land as soon as possible