3. APU AND ELECTRICAL

Question 1

Loss of APU

Answer 1

1. Shut down affected APU.

Question 2

APU High EGT

Answer 2

1. Take affected generator off line and shut down affected APU prior to reaching 1320 deg F.

Question 3

APU Engine Surge/Stall

Answer 3

1. Depress affected generator key on UKB to OFF.
2. Abort main engine start.
3. Shut down APU if surging continues.

Question 4

Failure of APU Auto Shutdown

Answer 4

1. Shut down affected APU.
2. If APU fails to shut down, position T/R Pwr/B Pwr switch to OFF on affected APU.
3. Go hullborne.
4. Isolate affected APU fuel system.

Question 5

Loss Of APU Fuel Pressure

Answer 5

1. Depress affected generator key on UKB to OFF.
2. Shut down affected APU.
3. Place TR/BATT Pwr switch to OFF.

Question 6

APU Low Lube Oil Pressure

Answer 6

1. Depress affected generator key on UKB to OFF, and shut down APU prior to pressure reaching 6 psig.

Question 7

APU High Lube Oil Temperature

Answer 7

1. Depress affected generator key on UKB to OFF, and shut down APU prior to temperature reaching 275 deg F.

Question 8

Loss Of Generator

Answer 8

1. Depress affected generator key on UKB to OFF.

Question 9

Loss of Transformer Rectifier

Answer 9

1. Verify other T/R has assumed DC load.

Question 10

Partial Loss of Electrical Power

Answer 10

1. Monitor AC load.