Landing Gear Flashcards
Brake temp light
A wheel brake is in the high range, 5 or higher
Tailskid light
Tailskid position disagrees with landing gear lever position
Nose wheel steering limits- Tiller and Pedals
Tiller: 65 degrees Pedals: 7 degrees
Autobrake RTO- When is it operative?
When thrust is retarded to idle above 85kts
Brake Source light?
Both normal and alternate brake system pressures are low
Brake temp- when does box become white?
White for first truck to exceed 2, then both box and number are white when temp reaches 5
What hydraulic systems supply the landing gear and brakes?
Are antiskid and autobrakes available on alternate braking system?
Center supplies power for retraction, extension, and steering.
Normal brakes are supplied by the right system and reserve brakes and steering system by the center system.
Autobrakes are only available to normal braking system..
Antiskid is available on both systems.
What Air/Ground sensor system is used?
Tilt sensors on the main gear, plus air ground strut sensors on the nose gear.
What holds the gear up?
Nose gear by uplocks, main gear by the gear doors.
What powers the alternate gear and how does it work?
A dedicated DC powered electric hydraulic pump releases all door and gear uplocks and the landing gear free-falls down and locked. Doors remain open and tailskid does not extend.
When does alternate brake system activate?
Automatic, if R system is low, C system automatically supplies pressure through the alternate antiskid valves to the brakes.
Which pump powers the reserve brakes and steering?
C1 Hydraulic pump.
What antiskid protection is supplied?
Normal system provides antiskid to each main wheel. Alternate system provides protection to laterally paired wheels.
When does autobrake application begin on landing?
Both thrust levers are idle and the wheels have spun up.
What disarms the autobrake system?
Pedal Braking Either thrust lever advanced after landing Speedbrake lever moved DOWN DISARM or OFF selected Autobrake fault Normal antiskid system fault
