Landing Gear, Brakes, Nose Wheel Steering Flashcards
How is the main landing gear held in the up and down position?
Mechanical up and down locks
How is the nose gear held in the up and down position?
Over center mechanism
Do the forward nose gear doors remain open after a normal extension?
Yes
How are the nose gear doors actuated?
Mechanically
What is the purpose of the brushes on the main wheel wells?
Aerodynamic seal
Where do you look to determine the position of the landing gear?
EICAS primary page
Which component monitors the position of up locks, down locks, and gear door position and weight on wheels sensors?
PSEU (proximity sensing electronic unit)
Which component ensures that the gear handle cannot be moved to the UP position on the ground?
Down-lock solenoid
When will the landing gear warning horn sound?
2 minutes after weight-off-wheels, with one or both thrust levers at idle and airspeed 163 KIAS or less, or airspeed is 185 KIAS or less with flaps less than 5º
When can the gear horn not be muted?
Both thrust levers at idle and/or flaps greater than 30º
Which hydraulic system operates the inboard brakes?
System # 3
Which hydraulic system operates the outboard brakes?
System # 2
When does the Anti-skid operate?
Wheel spin 35 kts or greater, or weight on wheels plus 5 seconds
What is the nose wheel steering degree of travel limits with nose wheel steering ON?
8º either side of center for rudder pedals
80º either side of center for tiller
At what speed does anti-skid control stop operating?
Wheel spin 10 kts or less
Which Hydraulic system is used during normal landing gear extension and retraction?
No. 3 Hyd. system
During landing gear retraction sequence, why is hydraulic pressure routed to activate the brake control valves?
To stop Main Wheel rotation
What means is provided to mute the landing gear horn?
Horn Mute switch light on the landing gear control panel
The Alternate Landing Gear Extension Method should be used in case of a failure in the Landing Gear Control System OR….
No. 3 Hydraulic System
Pulling the landing gear manual release handle will permit the main landing gear to extend and lock into position…
Using gravity and down lock assist actuator force from the No. 2 HYD system
What powers the wheel brakes?
No.2 HYD system powers the outboard brakes and the No. 3 powers the inboards brakes
Where is the brake pressure displayed?
on EICAS HYD Synoptic page
When the parking Brake is applied with all hydraulic pumps OFF, hydraulic pressure is trapped within which crake system?
Only the Inboard Brakes
The Brake Temp Monitoring System (BTMS)…
Monitors the temperature of each brake and the information is displayed on EICAS
The Strike Indicator located in the FWD end of the Tail Bumper assembly is there for…
Visual Indication of a tail strike
Landing Gear position indicators are displayed on
ED 1
MLG Doors are
Mechanically Operated
