Landing Gear

Question 1

What is the LGCIU? How many are there and what do they do?

Answer 1

Landing Gear Control and Interface Unit- 2

They provide sequencing, operation, monitoring, and indications for the landing gear

Question 2

What hydraulic system powers the landing gear and doors?

Answer 2

Green

Question 3

What happens if your airspeed is 280 kts and you place the landing gear lever to DOWN?

Answer 3

Nothing. A safety valve shuts off hydraulic power to the landing gear system when airspeed is above 260 kts

Question 4

What controls and manages all braking functions?

Answer 4

The Brake and Steering Control Unit (BSCU)

Question 5

What happens when you switch the A/SKID and N/W STRG to OFF?

Answer 5

• lose NWS
• braking is powered by the YELLOW system
• anti-skid is deactivated

Question 6

Which hydraulic systems provide pressure to the brakes?

Answer 6

Normal brakes- GREEN

Alternate brakes- YELLOW, backed up by a hydraulic accumulator

Question 7

What is the takeoff setting for auto brakes?

Answer 7

MAX

Question 8

What will cause the MAX AUTO BRK to activate on a RTO?

Answer 8

• airspeed greater than 72 kts
• thrust levers at IDLE
• ground spoiler extension

Question 9

How many brake applications are available with accumulator pressure?

Answer 9

Approx. 7 full applications

Question 10

What is the max brake temp for takeoff with brake fans off?

Answer 10

300* C

Question 11

What is the max brake temp for takeoff with brake fans on?

Answer 11

150* C

Question 12

What does the BRAKES & ACCU PRESS triple indicator indicate?

Answer 12

• YELLOW hydraulic pressure delivered to left and right brakes
• YELLOW system brake accumulator pressure

Question 13

How do you accomplish the alternate brake check during preflight?

Answer 13

• parking brake OFF
• step on both brake pedals and ensure proper resistance and deflection
• release pressure on the brake pedals

Question 14

How do you perform the brake check during initial taxi?

Answer 14

Press the brake pedals to ensure the aircraft slows, and check the brake pressure on the triple indicator is zero, indicating the GREEN hydraulic system has taken over

Question 15

How many degrees is full authority steering with the hand wheel?

Answer 15

75 degrees up to 20 kts and decreases to be 0 degrees by 80 kts

Question 16

How many degrees of steering is available via the rudder pedals?

Answer 16

6 degrees up to 40 kts and decreases to 0 degrees by 130 kts ground speed

Question 17

What does the rudder PEDAL DISC button on the steering hand wheel do?

Answer 17

Pressing the button removes control of the nose wheel steering from the rudder pedals until released

Question 18

What would occur if the A/SKID & N/W STRG switch was selected to off?

Answer 18

• Nose wheel steering is lost
• Anti-skid is deactivated
• Yellow hydraulic system would supply the brakes

Question 19

What 3 things occur when you turn the Manual Gear Extension Handle?

Answer 19

• Removes green hydraulic pressure
• Opens gear doors
• Releases the uplocks

Question 20

When the parking brake accumulator pressure is low, how is it recharged?

Answer 20

With the Yellow system electric pump

Question 21

By what means is the parking brake activated when you turn on the parking brake switch?

Answer 21

Electrically

Question 22

Is it required to depress the brake pedals while setting the parking brake?

Answer 22

No

Question 23

How do you verify the parking brake is set?

Answer 23

• Triple indicator brake pressure

- ECAM PARKING BRK memo

Question 24

What is the thrust limitation with the parking brake on?

Answer 24

Do not exceed 75% N1