Landing Gear

Question 1

Where are brake temperatures displayed?

Answer 1

Brake Temp Monitoring System (BTMS) displays each brake temp on the EICAS status display.

Question 2

On the accessory panel in the 767, what does a white illuminated Reserve Brakes and Steering Isolation (ISLN) light mean?

Answer 2

The center number one electric primary hydraulic pump is isolated to provide hydraulic pressure to the reserve brakes and steering system.

Question 3

On the 767, what effect will a loss of electrical power have on normal or alternate gear extension?

Answer 3

With loss of both AC buses, flight beyond 30 minutes may result in complete loss of electrical power and the inability to extend the gear and the flaps. (read: bad day)

Question 4

What does an amber illuminated BRAKE SOURCE light indicate?

Answer 4

Both normal and alternate brake system pressures are low, the accumulator is the current source of hydraulic brake pressure.

Question 5

In which brake systems (Normal, alternate, reserve), is antiskid available?

Answer 5

All brake systems

Question 6

In which brake systems (normal, alternate, reserve) are autobrakes available?

Answer 6

Normal brake system only

Question 7

What are the different brake systems and their hydraulic sources in the 757?

Answer 7

Normal (right)
Alternate (left)
Reserve (right)

Question 8

What are the different brake systems and their hydraulic sources in the 767?

Answer 8

Normal (right)
Alternate (center)
Reserve (center)

Question 9

What are the conditions required for the RTO autobrake operation to engage?

Answer 9

Automatically applies max brake pressure when the thrust lever are retarded to idle above 85 kts and the aircraft is on the ground.

Question 10

What are the various ways the autobrakes can be disarmed?

Answer 10

• Autobrake or normal antiskid system fault
• Speedbrake lever is moved from the full up position after the speedbrakes have deployed on the ground
• Either thrust lever advanced after landing
• Off or disarm position selected on autobrakes selector
• Pedal braking applied

Question 11

What are the conditions required for the autobrakes to operate during landing?

Answer 11

-Normal brakes must be operating (autobrake system also functions on reserve brakes on the 757)
-1,2,3,4, or MAX AUTO selects deceleration rate
NOTE: To maintain the desired deceleration rate, autobrake pressure is reduced as other controls contribute to total deceleration.

Question 12

What does an amber illuminated GEAR light mean?

Answer 12

The gear position disagrees with the lever position.

Question 13

What does an amber illuminated DOORS light mean?

Answer 13

A gear door is not closed.

Question 14

What does a white illuminated BRAKE TEMP light mean?

Answer 14

A wheel brake temperature is in the high range (a value of 5 or above on the status page)

Question 15

What does the Landing Gear Lever Lock Override (LOCK OVRD) do?

Answer 15

When pushed, releases the landing gear lever lock.

Question 16

What’s the meaning of an amber illuminated ANTISKID light on the overhead panel?

Answer 16

A fault is detected in the antiskid system.

Question 17

What do Autobrakes 1 through Max Auto provide?

Answer 17

A deceleration rate after main gear touchdown.

Question 18

What does an amber illuminated AUTOBRAKES light mean?

Answer 18

The autobrakes are disarmed or inoperative.

Question 19

What does an amber illuminated TAIL SKID light mean?

Answer 19

Tailskid position disagrees with the landing gear lever position.

Question 20

How does the parking brake system work?

Answer 20

Pull- Sets the parking brake when both brake pedals are simultaneously depressed and illuminates the PARK BRAKE light.
Release- Simultaneously depress both brake pedals.

Question 21

When is the alternate gear extend switch used?

Answer 21

When directed by the QRH in the event that the (757-left) or (767-right) hydraulic system pressure is lost.

Question 22

Which provides a quicker deceleration, full manual braking, or max auto braking?

Answer 22

Full manual braking.