Landing Gear & Brakes

Question 1

To prevent exceeding VFE, a safety valve isolates the GREEN hydraulic supply above what speed?

Answer 1

260 kts

Question 2

What hydraulic system powers the main gear?

Answer 2

GREEN

Question 3

What hydraulic system and computer powers the nose gear?

Answer 3

YELLOW and the Brake Steering Control Unit (BSCU)

Question 4

What do the Landing Gear Control and Interface Units (LGCIU) do?

Answer 4

Control door and gear movement

Monitor gear and door positions through prox sensors

Gear info to ECAM

Sends gnd/flt signals to other aircraft

Question 5

When do the Landing Gear Control and Interface Units (LGCIU) alternate control?

Answer 5

At the end of each cycle

OR

During failure

Question 6

What are the 5 braking modes?

Answer 6

Normal

Alt with antiskid

Alt without antiskid

Accumulator only braking

Parking Brake

Question 7

In the WHEELS pages what do the triangles represent?

Answer 7

LEFT = Landing Gear Control and Interface Units (LGCIU) 1 sensor

RIGHT = Landing Gear Control and Interface Units (LGCIU) 2 sensor

Question 8

What is the action item when GEAR UPLOCK is displayed?

Answer 8

Do NOT raise the gear lever

Question 9

What does a GREEN ARC on the BRAKES page represent?

Answer 9

Brake temp >100C

Question 10

What does a AMBER ARC on the BRAKES page represent?

Answer 10

Brake temp >300C

Question 11

What does the REL stand for?

Answer 11

Brakes Released

Question 12

What does the N/W STEERING memo mean?

Answer 12

Failure of nosewheel steering system

Failure of both BSCUs

Low Yellow pressure

A/SKID and N/W STGR switch selected off

Question 13

What does the ANTI SKID memo mean?

Answer 13

Both BSCU channels fail

A/SKID and N/W STGR switch selected off

Antiskid Failure

Low Yellow pressure

Question 14

What does the NORM BRK memo mean?

Answer 14

GREEN = Auto and Alternate brakes failure

AMBER = Loss of Normal Braking from BSCU failure or low Green pressure

Question 15

What does the ALTN BRK memo mean?

Answer 15

GREEN = Alternate braking available, normal and anti-skid failure

AMBER = Alternate braking failure

Question 16

How are the Landing Gear Position indicators signaled?

Answer 16

LGCIU 1 ONLY

Question 17

When and only when will MAX autobrakes be selected?

Answer 17

TO only

Question 18

What does the A/SKID & N/W STRG switch do?

Answer 18

Provides power to both BSCUs

Question 19

What system powers the parking brake?

Answer 19

YELLOW

Question 20

What system powers the wheels brakes?

Answer 20

GREEN

Question 21

When is NORMAL BRAKING available?

Answer 21

GREEN pressure available

At least one BSCU channel functioning

*Antiskid only works in Normal braking

Question 22

When in the Green arc, how long can the parking brake provide pressure?

Answer 22

12 hours

Question 23

How would you pressurize the YELLOW system for the parking brake?

Answer 23

Yellow Electric Pump

*get ground clearance first

Question 24

What do Brake Pressure gauges represent?

Answer 24

Parking Brake (yellow) pressure

Question 25

What 2 systems are essential for an aborted TO?

Answer 25

Auto Brakes and Spoilers

Question 26

When will Auto Brakes engage during a rejected TO?

Answer 26

Spoilers activated Thrust to IDLE MAX auto brakes apply auto with spoiler activation

Question 27

What is the steering limit of the rudder pedals?

Answer 27

6 degrees either direction gradually reduced at 40 knots to 0 at 140

Question 28

What does AUTO/BK LO do?

Answer 28

Activates 4 seconds after ground spoiler extension 1.7 m/sec deceleration

Question 29

What does AUTO/BK MED do?

Answer 29

Activates 2 seconds after ground spoiler extension 3 m/sec deceleration

Question 30

When will DECEL light activate?

Answer 30

80% target rate

Question 31

How do you deactivate auto brakes?

Answer 31

Turn off AUTO/BRK pb Apply pressure to at least one brake pedal (both for MAX) Retract ground spoilers

Question 32

When would you call mx for abnormal brake temp after landing?

Answer 32

>600C | <60C

Question 33

When would Alternate Braking with AntiSkid be active?

Answer 33

Low Green Pressure *no AutoBrakes

Question 34

When would Alternate Braking withOUT AntiSkid be active?

Answer 34

Low Green Pressure Loss of BSCU

Question 35

When would Accumulator only braking be used?

Answer 35

Low GREEN and YELLOW Pressure Accumulator provides 7 full brake applications on YELLOW system

Question 36

When would the RED arrow illuminate next to the Gear Selector?

Answer 36

Gear not down and locked at 750 AGL

Question 37

Why would recycling the gear help a gear problem?

Answer 37

Recycling the gear switches to the other LGCIU

Question 38

What if only one Green gear indicator is present?

Answer 38

This is sufficiant to conclude that the gear is down However, the doors will not close

Question 39

What other systems are unavailable with the loss of both LCGIUs?

Answer 39

Thrust Reversers GPWS

Question 40

What other systems are unavailable with the loss of both BSCUs? Or turning off the A/SKID & N/W STRG switch.

Answer 40

Nosewheel Steering Normal Braking Antiskid Autobrakes