Landing Gear/Brakes

Question 1

On approach to a wet runway the ANTISKID INOP light illuminates.

Q.6.1 How would you initially assess the situation?

Answer 1

• A system fault is detected by the antiskid monitoring system
• Refer to the QRH
• Previously computed PWB performance data is invalid

QRH 14.1

Question 2

On approach to a wet runway the ANTISKID INOP light illuminates.

Q.6.2 What guidance is there regarding all non-normal situations that would help you in this scenario?

Answer 2

Carefully consider time available to complete all required corrective actions to include the QRH. If sufficient time does not exist prior to beginning the final approach, execute a go-around.

AOM 5 Non-Normal, FOM 2.2.7

Question 3

On approach to a wet runway the ANTISKID INOP light illuminates.

Q.6.3 Why is the PWB performance data no longer valid?

Answer 3

Antiskid is inoperative and manual speedbrake deployment is required

AOM 17.7, QRH 14.1

Question 4

Q.6.4 What braking considerations are required with an ANTISKID INOP?

Answer 4

The possibility of a tire blowout due to manual braking necessitates careful consideration of the QRH Landing Procedure Review.

QRH 14.1

Question 5

Q.6.5 Which system normally provides hydraulic power for landing gear retraction, extension, and nose wheel steering?

Answer 5

System A

FRM 14.2.1

Question 6

Q.6.6. Is antiskid protection available with alternate braking?

Answer 6

Yes, antiskid protection is available with both Normal and Alternate Braking systems

FRM 14.2.4.4

Question 7

Q.6.7 What protections are provided by the antiskid system?

Answer 7

1. Skid
2. Locked wheel
3. Touchdown
4. Hydroplane

FRM 14.2.4.4

Question 8

Q.6.8 What is the purpose of the loose tread impact fitting?

Answer 8

To prevent a spinning tire with a loose tread from retracting into the wheel well and potentially causing damage to wheel well components

FRM 14.2.2.1

Question 9

Q.6.9 Which system provides hydraulic power for normal brakes?

Answer 9

System B

FRM 14.2.4.1

Question 10

Q.6.10 If hydraulic system B is low or fails, how will pressure be supplied to enable braking?

Answer 10

1. If hydraulic system B is low or fails, hyudraulic system A automatically suppolies pressure to the alternate brake system
2. If both normal and alternate brakes system pressure is lost, trapped hydraulic pressure in the brake accumulater (pressurized by B hydraulics) can still provide several braking applications or parking brake application

FRM 14.2.4.2, FRM 14.2.4.3