24. MAINTENANCE Panel (Hydraulics/APU/Powerplant)

Question 1

When would the pilots use the maintenance panel?

Answer 1

• If an MEL item requires its use.

• If the engine oil quantity indication does not appear on the ENG SD page.

Set the ENG 1 and 2 FADEC GND PWR pbs on the overhead maintenance panel to ON

Question 2

Do the pilots use the maintenance panel?

Answer 2

• Only if an MEL required pressurization of the BLUE system on the ground with the engines OFF.

• If the engine oil quantity indication does not appear on the ENG SD page.
Set the ENG 1 and 2 FADEC GND PWR pbs on the overhead maintenance panel to ON

Question 3

Which pushbutton on the maintenance panel would be used to pressurize the BLUE system on the ground?

Answer 3

The BLUE PUMP OVRD pushbutton

Question 4

If a mechanic pressed the APU AUTO EXTING TEST pushbutton what would occur?

Answer 4

The APU would shut down