Hydraulic

Question 0

When the BLUE ELEC PUMP is in AUTO mode it will run when? (If AC power is avail)

Answer 0

1. In flight
2. On the ground with 1 ENG running
3. BLUE PUMP OVRD pushed

Question 1

YELLOW ELEC PUMP turns on automatically when…

Answer 1

Cargo door is opened and closed

Question 2

PTU is inhibited when? (4 Possible)

Answer 2

1. One ENG master on & Parking Brake set
2. First ENG start
3. NWS DISC
4. Cargo Door operation

Question 3

What happens when the RAT MAN ON is pressed?

What system is restored?

Answer 3

Extends RAT anytime.

Blue system pressure only.

Question 4

YELLOW ELEC PUMP Selected (ON) commands?

Will pump run if power removed and then reapplied?

Answer 4

Pump On

No, Switch must be cycled

Question 5

A PTU FAULT light indicates?

What will cause the light to stay lit?

Answer 5

1. Green or yellow res overheats
2. Green or yellow low air press
3. Green or yellow res low fluid

Light stays on if still overheat

Question 6

During the first engine start the PTU is ______ and then after the second engine start the PTU is ______?

Answer 6

Inhibited and then Tested

Question 7

A BLUE ELEC PUMP FAULT light means? (5 possible things)

FAULT light will remain on for?

Answer 7

1. Low reservoir fluid
2. Reservoir overheat
3. Low reservoir air pressure
4. Low pump press
5. Pump overheat

Light will go out except for overheat

Question 8

A YELLOW ELEC PUMP FAULT light means? (5 possible things)

FAULT light will remain on for?

Answer 8

1. Low reservoir fluid
2. Reservoir overheat
3. Low reservoir air pressure
4. Low pump pressure
5. Pump overheat

Light stays on as long as overheat

Question 9

The PTU in AUTO mode will turn on when?

Answer 9

Diff press between green and yellow systems of more than 500 psi

Question 10

When the PTU is selected OFF, What happens?

Answer 10

Green and yellow PTU valves close.

Power transfer stops.

Fault light goes out except for overheat.