Landing Gear

Question 1

L/G GRVTY EXTN has a max speed of …….and will take a maximum of ……seconds.

Answer 1

220kts
90 seconds

This equates to about 5-6 miles at that speed

Question 2

Normal Brakes are powered by?

Answer 2

In normal braking mode:
The YELLOW normal hydraulic system supplies hydraulic power to the MLG wheels 1, 2, 3, 4, 6, and 8.
The GREEN normal hydraulic system supplies hydraulic power to the MLG wheels 5, 7, 9, 10, 11, and 12.
[SIM ONLY A350-900 In normal braking mode:
The YELLOW normal hydraulic system supplies hydraulic power to the front MLG wheels
The GREEN normal hydraulic system supplies hydraulic power to the rear MLG wheels.]
NB the accumulators do not in normal braking mode.

Question 3

A/B arming description for BTV basic brake mode (MED)

Answer 3

The basic autobrake mode arms when:
The flight crew presses the A/BRK pb
The aircraft is in flight
No BTV exit is selected
Normal or alternate braking modes are available on all wheel groups.

Question 4

Link between NWS and tiller/rudder pedal/autopilot

Answer 4

Each STEER CTL receives electrical demand from:
The steering handwheels (tillers)
The rudder pedals
The autopilot during automatic landings
The Steering Disconnect Panel (SDP).
Then, the active STEER CTL computes and sends electrical commands to the hydraulic equipment of the steering system.

Question 5

When is N/W STEER DISC amber on WD?

Answer 5

The NWS is disconnected (at least one engine is running)

Question 6

What does an amber arc over a wheel signify?

Answer 6

The amber arc indicates the hottest wheel brake when the brake temperature exceeds 300 °C.
(The green arc indicates the hottest wheel brake if the hottest brake temperature exceeds 100 °C but not 300°)