APU

Question 1

Q1 | APU PANEL

What does the green AVAIL light on the APU START pushbutton indicate?

[ FCOM-DSC-49-20 ]

Answer 1

APU N is above 99.5% or 2 secs after N reaches 95%

[ FCOM-DSC-49-20 ]

Question 2

Q2 | APU PANEL

With the APU green AVAIL light ON and the EXT PWR green AVAIL light on, which system is powering the aircraft?

[ FCOM-DSC-24-10-30-10, FCOM-DSC-24-20 ]

Answer 2

APU

[ FCOM-DSC-24-10-30-10, FCOM-DSC-24-20 ]

Question 3

Q3 | APU PANEL

What does an amber FAULT light in the APU MASTER SW pushbutton indicate?

[ FCOM-DSC-49-20 ]

Answer 3

The Electronic Control Box (ECB) commanded an auto shutdown of the APU

[ FCOM-DSC-49-20 ]

Question 4

Q4 | APU PANEL

How long should you wait to push the APU START pushbutton after engaging the APU MASTER switch?

[ FCOM-PRO-NOR-SOP-08 ]

Answer 4

3sec

[ FCOM-PRO-NOR-SOP-08 ]

Question 5

Q5 | APU PANEL

What does an amber FAULT light in the APU BLEED pushbutton indicate?

[ FCOM-DSC-36-20 ]

Answer 5

An APU bleed leak

[ FCOM-DSC-36-20 ]