APU PANEL

Question 1

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

Answer 1

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

Question 2

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

Answer 2

APU

Question 3

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

Answer 3

3 sec

Question 4

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

Answer 4

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

Question 5

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

Answer 5

An APU bleed leak