Landing Gear Flashcards
With the aircraft on the ground, what is incorporated within the landing gear control lever to prevent an up selection?
A solenoid lock
Which Hydraulic System is used to retract and extend the landing gear?
No 3 Hydraulic System
During the landing gear retraction sequence, why is Hydraulic pressure from the nose landing gear up line routed to activate the brake control valves?
To stop Main Wheel rotation
The PSEU monitors the position of:
The Landing Gear and Nose Landing Gear Doors, the up locks and down locks.
What means is provided to mute the landing gear horn?
Horn mute switch/light on the landing gear control panel
Where are the Landing Gear position and status displayed?
EICAS primary page (ED 1)
The Alternate Landing Gear Extension Method should be used in case of a failure in the Landing Gear Control System or:
No 3 Hydraulic System
How will Pulling the landing gear manual release handle permit the main landing gear to extend and lock into position:
Using gravity and down lock assist actuator force from the No 2 Hydraulic System
Where is the nose door toggle switch located?
External Service Panel
What powers the wheel brakes?
No 2 Hydraulic System powers the outboard brakes and No 3 Hydraulic System powers the inboard brakes.
In the event of a failure of No 2 and No 3 Hydraulic power, what emergency braking is available?
Break accumulators in both Hydraulic System provide reserve pressure for six brake applications with anti-skid selective OFF
Where is brake pressure displayed?
On EICAS Hydraulic synoptic page
When the parking brake is applied with all hydraulic systems off, will the brakes hold for a prolonged period of time?
Yes, but only the inboard brakes
The brake wear indicator must be checked with:
No 2 and No 3 Hydraulic Systems ON and the brakes applied
The Brake Temperature Monitoring System (BTMS)…
Monitors the temperature of each brake and the information is displayed on EICAS
Provided the anti-skid system is armed, when does it become operational?
Once a 35 knot wheel spin-up signal is present or a WOW signal after a five second delay and deactivates at 10 kts.
When using the steering tiller, nosewheel steering is available through how many degrees?
80°
Proximity Sensing Electronic Unit (PSEU) receives data from the following:
The landing gear up-locks and down-locks
The nose landing gear forward doors
BTMS Red range
15 – 20
The strike indicator located in the FWD end of the tail bumper assembly is there.
Visual indication of tail strike
Landing Gear position indicators are located
ED1
MLG doors are
Mechanically operated
