Landing Gear And Brakes Flashcards
What does pulling the landing gear FREE FALL LEVER do?
It relieves the hydraulic pressure of the landing gear lines and unlocks all landing gear from the up position.
What does it mean when the LANDING GEAR POSITION INDICATORS turn to red?
More than 20 seconds has passed since a discrepancy between LDG GEAR Lever position and the actual landing gear position.
If the parking brake is not fully released on the ground, what CAS message will be displayed?
PARKING BRAKE ON or CHECK PARKING BRAKE.
Where can the emergency/park brake accumulator pressure and the brake temperature indications be seen?
On the BRAKE STATUS synoptic page.
How long can the light on the STEERING button and the STEERING DISC CAS message take to go off after the first engagement of the nose wheel steering?
Up to two seconds.
Which steering switch has priority for safe operation on the ground?
The EXTERNAL STEERING DISENGAGE SWITCH.
When will the green TOWING ALLOWED light in the external steering panel illuminate?
When the external STEERING DISENGAGE switch is on the DISENGAGE position and EMERGENCY/PARK BRAKE Handle is not applied.
How far should the airplane be towed slowly in a straight line before turning?
10 feet.
When should the DN LCK REL button be used?
It should be used only in the event of a LDG GEAR Lever failure, or when it is necessary to clear obstacles.
What type of brake system is on the aircraft?
Brake-by-wire.
During normal operations, what does the Brake Control Unit (BCU) provide?
– Locked wheel protection;
– Anti-skid protection;
– Gear retract braking;
– Touchdown protection;
– Gear extension test;
– Brake Temperature Monitoring System (BTMS);
– Auto Brake (optional item).
Where can the Brake Temperature Monitoring System (BTMS) information be found and what does it provide?
– Brake temperature status on MFW;
– Brake overheat warning on EICAS.
Where must the brake temperature indication be prior to takeoff?
In the green range.
What are the two different modes of AUTOBRAKE control?
Landing (LO, MED, HI), and RTO.
What kind of pressure will Autobrake in the RTO mode apply?
Max braking.
When will Autobrake applications begin on landing?
Auto Brake application will start 1 second after WOW indicates ground and throttle signals at idle.
Is anti skid protection available while braking with the emergency/parking brake?
No.
What handle position is used when using the emergency/parking brake as a parking brake?
It must be pulled until it locks at the fully actuated position.
Where can the emergency/parking brake handle be set to as a reference for emergency braking?
To the first detention.
How can the emergency/parking brake be modulated?
By keeping the release button pressed.
How many full applications or hours of parking do the emergency/parking brake accumulators provide?
6 full or 16 hours.
When the airplane is airborne, is the steering system engaged?
No.
What is the maximum range that the nose wheel can turn in free wheel steering?
+/- 170°.
List the steering angles and associated speed with nose wheel steering engaged?
Steering angle varies from ± 62° up to 10 kt, decreasing linearly to 8° at 25 kt and then, to 3° at 68 kt.
