LANDING GEAR Flashcards
WHICH SYSTEM POWER RETRACTION, EXTENSION,STEERING ?
THE CENTER HYDRAULIC
HOW MANY EBAC AND EBA ARE INSTALLED?
WE HAVE 4 EBAC
AND 32 EBA
WHICH FUNCTION IS INSTALLED TO PROVIDE AN IMPROVED PERFORMANCE?
To improve performance, an early doors function automatically pre-opens the main landing gear doors one second after lift-off
WITHIN HOW MANY SECONDS THE PILOTS HAS TO RETRACT THE GEAR WITH THE PRE-OPENING DOOR FUNCTION?
30 SECONDS
HOW LONG WILL LAST THE EICAS LANDING GEAR POSITION AFTER RETRACTIONS?
10 SECONDS
IF ANY LANDING GEAR IS NOT UP AND LOCKED WHICH EICAS MESSAGE WE WILL GET?
GEAR DISAGREE
WHEN IS DISPLAYED THE GEAR DOOR MESSAGE?
IS DISPLAYED IF ANY HYDRAULICALLY DOOR IS NOT CLOSED AFTER NORMAL TRANSIT TIME
HOW THE GEARS EXTEND?
BY FREE FALL
IF THEN GEAR EXTENSION FAIL ?
WE CAN USE THE ALTN GEAR EXTENSION
HOW WE CAN EXTEND THE LANDING GEAR IN ALTERNATE EXTENSION MODE?
THE ALTN GEAR EXTENSION USES A DEDICATED DC POWERED HYDRAULIC PUMP AND CENTER HYD SYSTEM FLUID TO EXTEND THE LANDING GEAR
( DOORS WILL NOT CLOSE)
HOW MANY DEGREES CAN THE TILLERS TURN A NOSEWHEEL?
70 DEGREES
HOW MANY DEGREES CAN TILR THE NOSEWHEEL THE RUDDER PEDAL
8 DEGREES
WHT TYPE OF BRAKE THE 787 USES?
CARBON BRAKES
WHT IT’S INCLUDING THE BRAKE SYSTEM?
ANTI-SKID PROTECTION
AUTOBRAKE SYS
ELECTRIC BRAKE SYSTEM
PARKING BRAKE
WHT IS SUPPLYING POWER TO THE BRAKES?
4 ELECTRIC BRAKE POWER SUPPLY UNITS
HOW MANY EBA PROVIDED FOR EACH MAIN LANDING GEAR WHEEL BRAKE
4
HOW IS PROVIDED ANTISKID PROTECTION?
ON INDIVIDUAL MAIN GEAR WHEEL BASIS
HOW IS APPLIED THE HYDROPLANNING PROTECTION
USING AIRPLANE GS
WHT PROVIDES THE AUTOBRAKE SYSTEM?
The autobrake system provides automatic braking at preselected deceleration rates for landing and full pressure for rejected takeoff. Antiskid system protection is provided during autobrake operation
AUTOBRAKE SELECTIONS?
. AUTOBRAKE 1 through 4
- AUTOBRAKE MAX
- AUTOBRAKE RTO
WHEN IS THE AUTOBRAKE EICAS MESSAGE SHOWED?
The EICAS advisory message AUTOBRAKE is displayed if :
the autobrake system is disarmed,
or inoperative,
the AUTOBRAKE selector is OFF but the system is armed, or
an RTO is initiated above 85 knots but autobraking has not been applied.
WHEN IS THE AUTOBRAKE APPLYING THE MAXIMUM BRAKING PRESSURE?
AIRPLANE ON GRD
GS ABOVE 85 KTS
BOTH TRUST LEVERS RETARDED IDLE
DOES NOT OPERATE BELOW 85 KTS
IN LANDING PHASE WHEN THE AUTOBRAKE APPLICATION BEGIN>
WHEELS HAS SPUN UP
THRUST LEVERS RETARDED IDLE
HOW THE AUTOBRAKE DISARMS?
- pedal braking applied
- either thrust lever advanced after landing
- speedbrake lever is moved to the DOWN detent after the speedbrakes have deployed on the ground
- DISARM or OFF position selected on the AUTOBRAKE selector
- autobrake fault
- normal antiskid system fault
- loss of inertial data from the Inertial Reference Units (IRUs)
