PPRuNe Forums - View Single Post - A330 apu master switch "on/r" definition?
Old 14th June 2016 | 15:14
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KingAir1978
 
Joined: Feb 2002
Posts: 115
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From: US
The 'R' is there because it is possible to R eset the electronic control box. Have a look in your QRH, abnormal procedures, resets.
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