Boeing 737NG alternate flap question
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Boeing 737NG alternate flap question
Hi guys
i have checked on boeing book for pilots and asked my instructor in vain
Question is : what is the electrical source of alternate flap on the Boeing 737NG
sorry if it has been covered i have not seen it
many thanks
i have checked on boeing book for pilots and asked my instructor in vain
Question is : what is the electrical source of alternate flap on the Boeing 737NG
sorry if it has been covered i have not seen it
many thanks
Join Date: Feb 2004
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That would mean that in case you lose normal AC then you cannot extend your flaps ?
Note that 28V DC Bus 1 is required for _controlling_ the supply of Xfr Bus 2 AC power to the TE flap drive motor and for powering the hydraulic bypass valve. However, if you lose AC Xfr Bus 1, you should still get DC Bus 1 power for flap control if the Bus Transfer Switch is in AUTO.