Manual landing gear extension is possible with landing gear lever in any position,
Normal landing gear extension is still possible if hydraulic system B pressure is available.
Landing gear retraction is enabled.
Normal landing gear extension is not possible with the loss of system A.
Are intended to provide automatic braking to main gear wheels during retraction.
Provide positive uplock during main gear retraction.
Are intended to provide protection to wheel well components during gear retraction by preventing a gear with a spinning tire and loose tread from entering the wheel well.
Allows the landing gear transfer unit to use hydraulic system B pressure to raise the gear if hydraulic system A fails.
Normal pressure of 3500 psi.
Maximum pressure of 3500 psi.
Normal precharge of 2800 psi
Normal precharge in the brake accumulator of 1200 psi.
Skid, locked wheel, touchdown and hydroplane.
Skid and hydroplane only.
Skid, locked wheel and hydroplane only.
None of the above.
Automatic braking action occurs at the RTO level.
Automatic braking occurs at the MAX level.
AUTO BRAKE DISARM light illuminates three seconds after touchdown.
AUTO BRAKE DISARM light illuminates two seconds after touchdown.
However, the AUTO BRAKE DISARM light will illuminate and autobrake application will not occur.
However, autobrake action will occur only when both thrust levers are retarded to reverse thrust range.
Prior to decelerating through 30 knots groundspeed.
After decelerating through 60 knots groundspeed.
Moving the SPEED BRAKE lever to the flight detent position.
Advancing the forward thrust lever(s), except during the first three seconds after touchdown for landing.
Applying manual brakes.
Both b and c are correct.
The cabin pressure controller.
Six sensors, two on each landing gear.
The F'MC position updating from the GPS.
Nose wheel steering accumulator
Bypasses System B pressure.
Depressurizes both System A and B pressure.
Allows airplane pushback or towing without depressurizing the hydraulic systems.
Both a and c are correct.
Nose wheel brakes.
AUTO BRAKE select switch positioned to ON.
Wheel speed greater than 60 knots.
Forward thrust levers positioned to IDLE.
Position ANTISKID switch to RTO.
AUTO BRAKE select switch OFF.
A system fault has been detected by the antiskid monitoring system.
Brake accumulator pressure is in the red band.
System B pressure is low.
Observe extend limit speed (280K/.72M).
Retract landing gear speed of 245 knots maximum.
Maintain 235 knots maximum for 20 minutes.
Observe extend limit speed (270 knots/.82M)
Maximum braking when thrust levers are retarded to idle.
Automatic braking when reverse thrust selected.
Automatic speed brake deployment when thrust levers are retarded to idle.
AUTO BRAKE DISARM light will illuminate.
When System A pressure is low and the landing lever is positioned up
When the ALTERNATE NOSE WHEEL Switch is positioned ON
When the No. 1 engine RPM drops below a limit value with the landing gear still down and the landing gear lever is positioned up.
After a failure of the No. 1 engine hydraulic pump with the landing gear still down and the landing gear lever is positioned up.