LANDING GEAR

Question 1

When does the autobrake RTO mode activate and operate?

Answer 1

RTO activates above 85Kts and both thrust levers are retarded

Question 2

Which hydraulic system for normal, alternate and reserve brakes? antiskid and autobrake

Answer 2

Normal: R hyd syst, antiskid per wheel and autobrake
Alternate: L hyd sys, antiskid per axle, NO autobrake
Reserve: R hyd sys, antiskid per wheel and autobrake

Question 3

Antiskid INOP in flight, any consideration?

Answer 3

CATII only

Question 4

When does the autobrake armed and activate on landing? (3)

Answer 4

when both thrust levers retarded to idle and
main gear truck untilt and
wheels have spun up
IRS pitch angle<1°

Question 5

What deactivates the autobrake? (6)

Answer 5

pedal braking applied or
either thrust lever advanced or
speedbrake lever down or
DISARM or
autobrake fault or
antiskid fault

Question 6

Total loss of AC as well as total loss of L HYD System, any consideration?

Answer 6

Alternate gear extension is available as long as the HOT BAT BUS has power
so extend gear before battery depletion
25-30mins on VI
90mins on EK/VN

Question 7

if the parking brake valve doesn’t open after releasing the parking brake

Answer 7

the PARK BRAKE light indicates the parking brake valve is not open.
the ANTISKID light will illuminate because the parking brake is in the antiskid return line

Question 8

what do you activate when you use alternate landing gear switch signal

Answer 8

a small, dedicted electric pump to operate

Question 9

After TO, LG lever moved to UP, gear light illuminates, what does it indicates?

Answer 9

the gear lever disagrees with gear position and will extinguish when gear is up.

Question 10

antiskid controller offers which protections for alternate brakes?

Answer 10

antiskid, wheel lockup, hydroplaning and touchdown protection

Question 11

In the event of a total loss of hydraulic pressure?

Answer 11

Accumulator braking is available