PPRuNe Forums - View Single Post - B747-400: BAT switch with APU running
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Old 25th September 2016 | 15:34
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Icelanta
 
Joined: Feb 2012
Posts: 26
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From: Kopavogur
On ground, if the battery is put to OFF when the APU is running, the aircraft will lose all power, and APU will shut down.
The whole eicas will go "nuts" and your engineers will be very pleased 😏...
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