757 Systems - Landing Gear and Brakes

Question 1

If auto brakes are set for landing, when will they activate?

Answer 1

Main gear truck untilt and wheel spinup

Question 2

Can RTO be elected in the air?

Answer 2

No

Question 3

Once selected, when will RTO brakes activate?

Answer 3

Both thrust levers are retarded to idle after reaching 85 kts.

Question 4

After landing, what causes the autobrakes to disarm?

Answer 4

1. Manual braking
2. Advancing either thrust lever
3. Speed brake lever not in UP (after they were extended)
4. Selecting DISARM or OFF on the autobrake selector

Question 5

What is the max speed with a gear door down?

Answer 5

270 kts or .82 M

Question 6

When will the gear config horn activate?

Answer 6

Gear not down and locked and
1. Either thrust lever idle AND
2. RA <800’
or
3. Flaps in landing position

Question 7

When would you ever use Accumulator brakes?

Answer 7

In the event of a total hydraulic system loss.

Question 8

What does accumulator brakes provide?

Answer 8

At least one braking application with antiskid protection.

Question 9

What does the amber BRAKE SOURCE light indicate?

Answer 9

Both left and right hydraulic system pressures are low