LANDING GEAR Flashcards Preview

BOEING 787 > LANDING GEAR > Flashcards

Flashcards in LANDING GEAR Deck (27)
Loading flashcards...
1

WHICH SYSTEM POWER RETRACTION, EXTENSION,STEERING ?

THE CENTER HYDRAULIC

2

HOW MANY EBAC AND EBA ARE INSTALLED?

WE HAVE 4 EBAC

AND 32 EBA

3

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

4

WITHIN HOW MANY SECONDS THE PILOTS HAS TO RETRACT THE GEAR WITH THE PRE-OPENING DOOR FUNCTION?

30 SECONDS

5

HOW LONG WILL LAST THE EICAS LANDING GEAR POSITION AFTER RETRACTIONS?

10 SECONDS

6

IF ANY LANDING GEAR IS NOT UP AND LOCKED WHICH EICAS MESSAGE WE WILL GET?

GEAR DISAGREE

7

WHEN IS DISPLAYED THE GEAR DOOR MESSAGE?

IS DISPLAYED IF ANY HYDRAULICALLY DOOR IS NOT CLOSED AFTER NORMAL TRANSIT TIME

8

HOW THE GEARS EXTEND?

BY FREE FALL

9

IF THEN GEAR EXTENSION FAIL ?

WE CAN USE THE ALTN GEAR EXTENSION

10

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)

11

HOW MANY DEGREES CAN THE TILLERS TURN A NOSEWHEEL?

70 DEGREES

12

HOW MANY DEGREES CAN TILR THE NOSEWHEEL THE RUDDER PEDAL

8 DEGREES

13

WHT TYPE OF BRAKE THE 787 USES?

CARBON BRAKES

14

WHT IT’S INCLUDING THE BRAKE SYSTEM?

ANTI-SKID PROTECTION

AUTOBRAKE SYS

ELECTRIC BRAKE SYSTEM

PARKING BRAKE

15

WHT IS SUPPLYING POWER TO THE BRAKES?

4 ELECTRIC BRAKE POWER SUPPLY UNITS

16

HOW MANY EBA PROVIDED FOR EACH MAIN LANDING GEAR WHEEL BRAKE

4

17

HOW IS PROVIDED ANTISKID PROTECTION?

ON INDIVIDUAL MAIN GEAR WHEEL BASIS

18

HOW IS APPLIED THE HYDROPLANNING PROTECTION

USING AIRPLANE GS

19

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

20

AUTOBRAKE SELECTIONS?

. AUTOBRAKE 1 through 4

• AUTOBRAKE MAX

• AUTOBRAKE RTO

21

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.

22

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

23

IN LANDING PHASE WHEN THE AUTOBRAKE APPLICATION BEGIN>

WHEELS HAS SPUN UP

THRUST LEVERS RETARDED IDLE

24

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)

25

HOW IS THE SYSTEMS SEQUENCING THE BRAKING APPLICATION?

ALTERNATING THE WHEEL PAIRS AT EACH BRAKE APPLICATION, THIS REDUCES THE BRAKES APPLICATION FOR EACH BRAKE

26

PARKING BRAKE FEATURE?

“PARK AND ADJUST” feature which monitors the condition of the brakes after application and adjusts the clamping force as needed during brake cooling.

27

BRAKE TEMP INDICATION?

FROM 0 TO 9.9

0 TO 3.0 WHITE UNFILLED

3.0 TO 4.9 FILLED WHITE

4.9 + AMBER