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Electrical

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Question 21328
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When is the EICAS advisory message ELEC DRIVE 1, 2, 3, 4 is displayed?
A
An IDG has high oil temperature or low oil pressure.
B
An IDG has been manually disconnected.
C
The generator control breaker (GCB) is open with its respective engine running.
D
The respective bus tie breaker (BTB) is open.