Landing Gear

Question 1

Landing gear indicator lights illuminated RED

Answer 1

landing gear is not down and locked with either or both thrust levers at idle and below 800 AGL

OR

related gear is in disagreement with LANDING GEAR lever (in transit or unsafe)

Question 2

Landing gear lever (UP, OFF, DN)

Answer 2

UP- landing gear retract

OFF- hydraulic pressure removed from gear system

DN- landing gear extend

Question 3

Landing gear override trigger

Answer 3

allows gear lever to be raised, bypassing the gear lever lock

Question 4

Manual Extension Access Door

Answer 4

OPEN:
-manual landing gear extension possible regardless of lever position

• normal gear extension still possible with hydraulic system A pressure available
• gear retraction disabled

CLOSED- normal

Question 5

AUTOBRAKE DISARM light

Answer 5

Amber:
-speed brake lever moved to down detent during RTO or landing

• manual braking applied
• thrust levers advanced during RTO or Landing
• landing made with RTO selected
• malfunction in autobrakes

If extinguished the system is sleected OFF or autobrake is armed

Question 6

ANTISKID INOP (amber light)

Answer 6

system fault is detected

Question 7

Brake temp (amber light)

Answer 7

temp of one or more brakes exceed 4.9

Question 8

NOSE WHEEL STEERING switch

Answer 8

ALT- hydraulic system B provides power for steering

NORM- hydraulic system A provides power for steering

Question 9

Rudder pedals provide how many degrees of steering in either direction

Answer 9

7

Question 10

Nose wheel steering wheel provides how many degrees of steering in either direction?

Answer 10

78 degrees

Question 11

During gear retraction, what stops the rotation of the main gear wheels? The nose?

Answer 11

brakes stop rotation of the mains and snubber stops rotation of nose

Question 12

What holds main gear in place after retraction? Nose gear?

Answer 12

mechanical uplocks for the main and an overcenter lock for the nose

Question 13

If a spinning tire with loose tread is present, what prevents the gear from retracting?

Answer 13

the spinning tire with loose tread will impact a fitting in the wheel well ring opening (frangible fitting) and the gear will free fall back down

Question 14

How does the gear go down normally and what keeps it extended?

Answer 14

Hydraulic system A pressure releases the uplocks and helps to extend the gear along with gravity and air loads. OVercenter mechanical and hydraulic locks hold the gear down

Question 15

How would you retract the gear after manual extension?

Answer 15

close manual extension access door

move gear lever to down with system A pressure available and then position it UP

Question 16

What does the brake system include?

Answer 16

• Normal brakes
• alternate brakes
• brake accumulator
• antiskid protection
• autobrakes
• parking brake
• and brake temp indication in some a/c ‘

Question 17

Does anti-skid work with alternate brakes?

Answer 17

yes

Question 18

What is the difference in how the anti skid works in the normal and alternate brake systems?

Answer 18

In the normal system, each main gear has individual antiskid protection

in the alternate system, the antiskid protection is applied to main gear wheel pairs

Question 19

what does antiskid protection provide?

Answer 19

skid, locked wheel, touchdown, and hydroplane protection

Question 20

What conditions must be met to arm RTO prior to takeoff?

Answer 20

-airplane on ground

antiskid and autobrakes operational

Autobrake switch positioned to RTO

wheel speed less than 60

forward thrust levers IDLE

Question 21

with RTO selected, if the takeoff is rejected below __ knots, autobraking is not initiated and the AUTO BRAKE DISARM light does not come on

Answer 21

90 knots

Question 22

When does autobrake application occur after landing?

Answer 22

thrust levers both at idle and main wheel spin up

Question 23

how will autobrake pressure be affected as other controls such as thrust reverse and spoilers contribute to deceleration?

Answer 23

autobrake pressure will be reduced to maintain selected landing deceleration rate