Landing Gear & Brakes

Question 0

Normal brakes on system?

Answer 0

4

Question 1

Which gear are steerable?

Answer 1

Body and nose gear

Question 2

Alternate brake system?

Answer 2

Sys 1

Question 3

Backup alternate brake, system?

Answer 3

Sys 2

Question 4

Tiller steering authority? (Degrees)

Answer 4

70 degrees either side of center

Question 5

Rudder pedal authority? (Degrees)

Answer 5

7 degrees in either direction

Question 6

Hyd system for normal LNG gear operation

Answer 6

Sys 1&4

Question 7

How many main LNG gear?

Answer 7

4:
2 main body
2 wing

Question 8

Air gnd sensing system

Answer 8

Relays in wheel well: wing and body gear tilt

Extended strut in the gear nose

Question 9

Auto brake selector switch

Answer 9

Held in place by magnetic latch

Easily tripped if overridden under various conditions

Question 10

Auto brakes work when

Answer 10

Gnd mode is sensed
Main wheel spin up is sensed
All 4 thrust levers are at idle

Will maintain selected deceleration

Question 11

RTO selection?

Answer 11

Provides Max braking during t/o roll
Only operates if gnd spd has exceeded 85 kts during t/o roll
Can only be set on the gnd

Question 12

Auto brakes disarmed by: five

Answer 12

1. Manual brk
2. Adv any thrust lever after landing
3. Moving spd brake lever to down position
4. Move AB selector to disarm
5. Fault in A/skid or AB system

Question 13

Anti-skid armed at what spd?

Answer 13

Greater than 8kts wheel spd

Question 14

During alternate brake operation……

Answer 14

AS operation provided to wheel pairs rather than individual wheels

Brake torque signal ( detects excessive gear stress) sends to alternate AS valve and signal sent to laterally paired wheel basis

Question 15

When is lever lock engaged ?

Answer 15

On the ground

When any main gear is not tilted or either body gear is not centered

Question 16

How is the main gear held in position?

Answer 16

Locks in the wheel well. After locks are engaged, gear doors close

Question 17

Door position after alternate gear ext?

Answer 17

Remain open

Question 18

Hyd system for nose wheel steering?

Answer 18

Hyd sys 1

70 degrees

Question 19

Brake temp ranges

Answer 19

Normal = 0-4 ( white)
High = 5-9 (Amber)

Question 20

Carbon type brakes on all main gear

T or F?

Answer 20

True

Question 21

Gear indication on primary EICAS?

Answer 21

No display if gear is up

Expanded display if gear operation not normal

Question 22

a/s while gear in transit

Answer 22

270 kts or .82

Question 23

a/s after gear fully extended

Answer 23

320 kts or .82

Question 24

OFF position on the ldg gear panel?

Answer 24

Removes hyd psi from the system

Question 25

Autobrakes fault EICAS/amber

3 possibilities

Answer 25

AB disarmed or inoperative

Selector is OFF but system is armed

RTO above 85 kts but no brakes applied

Question 26

BODY GEAR STRG (Amber)

Answer 26

Body gear steering unlocked

Or

Pressurized when not commanded

Question 27

Will accumulator pressure stop a/c?

Answer 27

No! Only purpose is to set pkg brake

Question 28

BRAKE SOURCE (Amber)

Answer 28

No brake source available

Question 29

If GEAR TILT displayed

Answer 29

Do not retract gear

Observe gear extended spd limit