Auxiliary Systems Flashcards
What is the pilot action if the APU fails?
Note and analyze bite indications before cycling the battery or attempting another APU start.
What is the minimum accumulator pressure prior to beginning the APU start sequence?
2,800 psi
The purpose of the APU is to _________.
Provide a pneumatic air source and an electrical power source
What should be done if during ground operation at high ambient temperatures the APU OIL TEMP HI caution illuminates?
If this occurs, the APU should be shut down immediately to prevent damage, and after a 30-minute cooling period, the oil level should be checked.
With the engines supplying the air source for the heater, maximum torque available is reduced by _________?
4%
The Fire Detection System provides fire warning in the cockpit in case of what?
Fire in either engine compartment or the APU compartment
What does a broken or missing red thermal discharge safety port indicate?
That one or both of the containers thermal relief valve have discharged.
When AC power is not available, fire fighting capability is lost on which engine?
2 Engine
In which position should the pilot start the windshield wipers?
HI
To prevent possible damage to windshield surface, do not operate windshield wipers on a ___________.
Dry windshield
What are the four positions of the Windshield Wiper Control switch?
OFF, LOW, HI, and PARK
Where are the control switches for windshield anti-ice located?
Upper console.
The fault monitoring circuit will ____ ___ the heat if the windshield temperature is above 43° C.
shut off
When is the windshield anti-ice intentionally inoperative?
When the APU generator is the only source of electrical power and the backup pump is on
Where is the cargo hook control panel located?
On the upper console.
