MD-11 Flight Crew Operations Manual
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APU -
Controls and Displays
APU.30.2
4. APU START/STOP Switch - blue
This switch is an alternate action pushbutton switch that starts and stops the
APU manually. With OFF selected, the APU shuts down 90 seconds after the
APU bleed air stops.
ON - Flashes blue when the APU is selected to START, and illuminates
steady blue when the APU is running on speed. If the APU shuts down
automatically due to a fire signal, ON flashes until the APU START/STOP
switch is selected to STOP (OFF).
OFF - Illuminates steady when the APU is selected to STOP. Shutdown
occurs 90 seconds after the APU is no longer supplying bleed air. OFF
remains illuminated until the shutdown cycle is complete.
If the APU is started with this switch, the APU can only be stopped manually
with this same switch.
5. AGENT DISCH APU FIRE Handle
For description refer to the Fire Protection chapter.
October 02, 2006
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