B737CL Hydraulic System

Question 1

Which controls are powered by Hydraulic system A? (9 items)

Answer 1

1. Landing gear
2. Inboard flight spoilers
3. Ground spoilers
4. Alternate braking
5. Number 1 thrust reverser
6. Elevator
7. Ailerons
8. Rudder
9. Autopilot A

Question 2

Which controls are powered by hydraulic system B? (10 items)

Answer 2

1. Trailing edge flaps
2. Leading edge devices
3. Outboard flight spoilers
4. Yaw dampener
5. Number two thrust reverser
6. Ailerons
7. Rudder
8. Elevator
9. Autopilot B
10. Normal brakes

Question 3

What does the an amber ‘overheat’ light on the hydraulic panel indicate?

Answer 3

The associated electric motor–driven pump has overheated.

Question 4

What does the an amber ‘low-pressure’ light on the hydraulic panel indicate?

Answer 4

The output pressure of associated pump is low. (May also indicate associated fire handle is pulled)

Question 5

Why should the engine driven hydraulic pump switches remain on when engines are shut down?

Answer 5

To prolong solenoid life.

Question 6

What is normal, minimum and maximum HYDRAULIC System PRESSURE Indications?

Answer 6

Min: 2500 PSI Normal: 3000 PSI Maximum: 3500 PSI