Standby bus off
Why anybody would want to turn this discussion into a crazy AA bashing contest is beyond me, but here's a quote from my 757-200 QRH. Sorry I can't render all the Boeing typography. The dotted lines below step 3 an 4 stand for 'end of checklist'
STANDBY BUS OFF
message:STANDBY BUS OFF
condition:one or more of these busses are not energized
.AC standby bus
.DC standby bus
1. STBY POWER selector............BAT
2. choose one:
*standby power bus OFF light stays illuminated and right bus off
light is not illuminated
>> goto step 4
*standby power bus OFF light is not illuminated or right BUS OFF light
stays illuminated
>> goto step 3
3. the battery will provide standby bus power for approximately 90
minutes
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4. standby power selector.........AUTO
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