CRJ900 Systems Landing Gear Flashcards
Which hydraulic system is used during normal landing gear extension and retraction
No 3 Hydraulic System
With the aircraft on the ground, what is incorporated within the landing gear control lever to prevent an up selection
A solenoid lock
During the landing gear retraction sequence why is hydraulic pressure routed to activate the brake control valves
To stop the main wheel roation
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 failure in the landing gear control system or…
the No 3 Hydraulic system.
Pulling the landing gear manual release handle will permit the main landing gear to extend and lock into position
Using gravity and down lock assist actuator force from the No 2 Hyd system
What powers the wheel brakes
No 2 Hydraulic system powers the outboard brakes and No 3 Hydraulic system powers the inboard brakes
Where is brake pressure displayed
On EICAS Hydraulic synoptic page
When the brake is applied with all hydraulic pumps OFF, hydraulic pressure is trapped within which brake system for prolonged period of time
On the inboard brakes
The brake temperature monitoring system (BTMS) does what
Monitors the temperature of each brake and the information is displayed on the EICAS
Provided the anti-skid system is armed, when does the anti-ski system become operational
Once a 35 knot wheel spin-up signal is present or a WOW signal after a 5 second delay.
When using the steering tiller, nose wheel steering is available through how many degrees
80
The strike indicator located in the FWD end of the tail bumper assembly is there for
Visual indicated of tail strike
Landing gear position indicators are located
ED1
