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UH60A/L Systems > Auxiliary Systems > Flashcards

Flashcards in Auxiliary Systems Deck (18)
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1
Q

What is the pilot action if the APU fails?

A

Note and analyze bite indications before cycling the battery or attempting another APU start.

2
Q

What is the minimum accumulator pressure prior to beginning the APU start sequence?

A

2,800 psi

3
Q

The purpose of the APU is to _________.

A

Provide a pneumatic air source and an electrical power source

4
Q

What should be done if during ground operation at high ambient temperatures the APU OIL TEMP HI caution illuminates?

A

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.

5
Q

With the engines supplying the air source for the heater, maximum torque available is reduced by _________?

A

4%

6
Q

The Fire Detection System provides fire warning in the cockpit in case of what?

A

Fire in either engine compartment or the APU compartment

7
Q

What does a broken or missing red thermal discharge safety port indicate?

A

That one or both of the containers thermal relief valve have discharged.

8
Q

When AC power is not available, fire fighting capability is lost on which engine?

A

2 Engine

9
Q

In which position should the pilot start the windshield wipers?

A

HI

10
Q

To prevent possible damage to windshield surface, do not operate windshield wipers on a ___________.

A

Dry windshield

11
Q

What are the four positions of the Windshield Wiper Control switch?

A

OFF, LOW, HI, and PARK

12
Q

Where are the control switches for windshield anti-ice located?

A

Upper console.

13
Q

The fault monitoring circuit will ____ ___ the heat if the windshield temperature is above 43° C.

A

shut off

14
Q

When is the windshield anti-ice intentionally inoperative?

A

When the APU generator is the only source of electrical power and the backup pump is on

15
Q

Where is the cargo hook control panel located?

A

On the upper console.

16
Q

Three modes of cargo hook release are

A

Normal, Manual, and Emergency

17
Q

The pitot-static system provides

A

Pressure for operation of the differential pressure instruments.

18
Q

The LFT or RT PITOT HEAT caution lights mean what?

A

The pitot tube heating element has failed