Oral (; Questions Flashcards
(152 cards)
The APU is running, and the aircraft is unattended. If it catches fire, what action do you
have to take?
Automatically extinguishes the fire
*Unattended mode is any time before the engines have started or after the engines have
shut down.
*There is one APU fire extinguisher bottle
Is there a way to tell if the APU has caught fire outside the aircraft?
Nose Gear Alarm Sounding
What does the red light on the nose gear APU panel mean?
Was on fire (blew the bottle)
*APU fire is detected (check the answer)
If the emergency light switch is in the armed position what will cause them to
automatically turn on?
Loss of DC power
How long will the emergency lights stay on?
At least 15 minutes
What does the external power AVAIL light mean?
The ELMS has checked the voltage and frequency are within limits
Prior to APU shutoff, which external power should be selected?
Primary external
Before you select primary external power what must be selected on?
BATTERY switch
How many batteries do we have?
2
With APU off and Primary external selected what is being powered?
Everything
What happens if you select secondary external power?
Secondary external powers the Left Main AC bus
Primary external powers the Right Main AC bus
Can the APU be started without external power?
Yes
Where does the APU get its fuel from?
Left main tank
Is the apu fuel pump DC or AC pump?
DC Pump (if there is no AC power)
*Will take from the left FWD pump automatically but any AC pump can supply the fuel
With the APU is running you should check the status page for?
Hydraulics
MEL’s or CDL’s
Does the ADIRU have to be on to load the flight plan?
NO
What has to be done to start initializing the ADIRU?
Set the initial position (GPS location)
How long will the ADIRU take to align?
10 mins
How do we know that the ADIRU is in the alignment phase?
Countdown clock
White memo
How do we know that the ADIRU alignment is complete?
Will load the PFD
How long can the ADRIU be in nav mode for before it needs a position update?
24hrs
When the ADIRU is turned off what’s the recommended time we have to turn it off for?
30 seconds
What does the ON BATT light next to the ADIRU switch mean?
The ADIRU is on the Hot Battery Bus
What caused the ON BATT light to illuminate?
The battery is off and the ADIRU is left on