Landing Gear/Brakes And Steering

Question 0

Nose wheel steering thru the Rudders is available on t/o and landing, when?

Answer 0

Up to 150 kts on Take Off

And

Below 100 kts on Landing/ steering hand wheel below 100 kts and 72 degrees

Question 1

Nose wheel steering limitations?

Red warning on the overhead panel comes on when?

Answer 1

Steering +- 72 degrees

Red warning on the overhead +- 93 degrees

Question 2

When is Anti-Skid deactivated?

Answer 2

Below 10 kts

Question 3

Automatic Braking activation is at the command of?

Answer 3

Ground Spoilers activation

Question 4

Accelerate and stop below 72 kts, what does not occur and why?

Answer 4

Auto Braking will not occur because Grd Spoilers will not extend.

Question 5

What is the BSCU and how many are there?

Answer 5

2 BSCU

A change from one to the other occurs with each down LDG Gear Lever Selection

Question 6

How many modes of braking are there and what are there Funtions?

Answer 6

4 modes of braking
1. Normal from the Green Hydraulic System.
2. Alternate with Anti-Skid from the Blue Hydraulic System.
3. Alternate, without Anti-Skid
from the Accumulator Pressure.(1000psi max peddle pressure)
4. Parking Brake, from the Blue Hydraulic System.

Question 7

Brake Hydraulic system pressure:
NORM/ON
ALT/ON
ATL/OFF

Answer 7

Green
Yellow
Yellow/no Anti-Skid

Question 8

Alternate Braking “ two types “
1). With anti skid
2). Without anti skid
note: accumulates provide 7 full brake applications
Parking brakes provide 12 hours brake pressure
**DSC-32 30 10**

Answer 8

ALTERNATE BRAKING WITH ANTISKID Autobrake is inoperative. Active when green hydraulic pressure is insufficient and provided : ‐ Blue hydraulic pressure is available ; ‐ A/SKID and N/W STRG switch is ON ; ‐ PARKING BRAKE is not ON. Note: Alternate braking is also active in flight, when the landing gear is up. The automatic switching between the green and blue system is achieved by an automatic hydraulic selector. Control is achieved by the pedals through the auxiliary low hydraulic pressure distribution line acting on the dual valves. The BSCU controls antiskid system via the alternate servo valves. Brake pressure, as well as accumulator pressure, are indicated on a triple indicator located on the center instrument panel.

Question 9

When the aircraft touches down with at least :

1) . One main landing gear.
2) . At least one THEUST REVERSER is in the Reverse sector.

What happens ?

Answer 9

The ground spoilers partially deploy to ensure the a/c properly sits down on the ground.