Landing Gear / Brakes Flashcards
Q.6.1. How would you initially assess the situation?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
A system fault is detected by the antiskid monitoring system
Refer to the QRH
Previously computed PWB performance data is invalid
Reference: QRH 14.1
Q.6.2. What guidance is there regarding all non-normal situations that would help you in this scenario?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
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.
Reference: AOM 5 Non-Normal, FOM 2.2.7
Q.6.3. Why is the PWB performance data no longer valid?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
Antiskid is inoperative and manual speedbrake deployment is required.
Reference: AOM 17.7, QRH 14.1
Q.6.4. What braking considerations are required with an ANTISKID INOP?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
The possibility of a tire blowout due to manual braking necessitates careful consideration of the QRH Landing Procedure Review.
Reference: QRH 14.1
Q.6.5. Which system normally provides hydraulic power for landing gear retraction, extension, and nose wheel steering?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
System A.
Reference: FRM 14.2.1
Q.6.6. Is antiskid protection available with alternate braking?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
Yes, antiskid protection is available with both Normal and Alternate Braking systems.
Reference: FRM 14.2.4.4
14.2.4.2 Alternate Brake System
Revised: 11/09/2011
The alternate brake system is powered by hydraulic system A. If hydraulic system B is low or fails, hydraulic system A
automatically supplies pressure to the alternate brake system
Q.6.7. What protections are provided by the antiskid system?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
Skid
Locked wheel
Touchdown
Hydroplane
Reference: FOM 14.2.4.4
Q.6.8. What is the purpose of the loose tread impact fitting?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
To prevent a spinning tire with a loose tread from retracting into the wheel well and potentially causing damage to wheel well components.
Reference: AOM 14.2.2.1
Q.6.9. Which system provides hydraulic power for normal brakes?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
System B.
Reference: FRM 14.2.4.1
Q.6.10. If hydraulic system B is low or fails, how will pressure be supplied to enable braking?
Scenario
On approach to a wet runway the ANTISKID INOP light illuminates.
Review the reference below to understand alternate braking capabilities.
Reference: FOM 14.2.4.2, FRM 14.2.4.3
