14 - Landing Gear

Question 1

Max gear speed

Answer 1

270K - .82M

Question 2

ALTN gear extend speed

Answer 2

250K - .75M

Question 3

What is the source for Gear Config Warning?

Answer 3

L RA

Question 4

Steering angle rudder pedals/tiller?

Answer 4

7/65

744 7/70

Question 5

How many Brake Systems on the 767?

Answer 5

• Normal (R) - autobrakes

* Alternate (C) - auto switch with low R system press

Question 6

What are the indications with brake temp 5 or above?

Answer 6

• STATUS - box white/number white

* BRAKE TEMP (next to gear lights)

Question 7

What does ALT GR EXTEND switch do?

Answer 7

Electrically releases gear and door uplocks allowing gear to free fall

Main gear doors remain open

Question 8

When are autobrakes deactivated?

Answer 8

“FSTOP”

F - Fault autobrakes/antiskid

S - Speedbrake stowed

T - Thrust lever advanced

O - OFF selected

P - Pedal brakes applied

Question 9

What is the Brake Accumulator used for?

Answer 9

Some brake applications

Park brake can be set

Question 10

Which brake systems have anti-skid?

Answer 10

both

normal - individual wheels

alternate - laterally paired wheels

(touchdown, hydroplaning and locked wheel)

Question 11

What happens when the RESERVE BKS and STRG switch is pushed?

Answer 11

C reserve hydraulic fluid is provided to the C1 electric pump to provide nose wheel steering and ALT Brakes only

Question 12

When does BRAKE SOURCE light illuminate?

Answer 12

Both Normal and Alternate brake hydraulic system pressure low

Question 13

What holds the gear up after retraction?

Answer 13

Nose gear - uplocks

Main gear - gear doors

Question 13

How is gear extended?

normal -

alternate -

Answer 13

• all gear hydraulically; powered down and locked, main gear trucks tilt and doors close
• electric motor opens uplocks (nose gear or main doors) and gear free-fall to down and locked position, hydraulically powered doors remain open

Question 13

Which hydraulic system powers gear operation and nose wheel steering?

Answer 13

C

Question 14

RTO commands ____ braking pressure if ____

Answer 14

• both thrust lever to idle

- ground speed above 85 kts

Question 15

When do autobrakes engage after landing?

Answer 15

shortly after main wheel touchdown when both thrust levers are at idle

(deceleration limited until main trucks untilt, pitch less than one degree)

Question 16

To maintain selected autobrake deceleration rate, brake pressure is reduced _____

Answer 16

as other controls such as thrust reversers and spoilers contribute to total deceleration

Question 17

How are autobrakes disarmed? (5)

Answer 17

• brake pedal pushed
• speedbrake lever down
• either thrust lever advanced
• DISARM or OFF selected
• autobrake or antiskid fault

Question 18

Park brake can be set with ____?

Brake accumulator is pressurized by ___?

What does BRAKE PRESS indicator show?

Answer 18

normal or alternate hydraulic system pressure

right hydraulic system

accumulator pressure

Question 19

The tailskid uses ____ to extend and retract

Answer 19

main landing gear actuation system