Landing Gear Flashcards
Which landing gear have weight on wheels proximity sensors?
Nose gear and both main gears
What happens When the LG PULL handle is raised in flight?
Unlocks mechanically release
Runaround and dump valve opens
Auxiliary actuators are pressurized from the right hydraulic system
What is the maximum altitude the landing gear may be extended in the challenger 350 aircraft?
18000 ft
What is the proper condition for accurately checking the brake wear indicator pins during preflight?
Both hydraulic systems pressurized
Parking/ emergency brake set
If the main landing gear door is missing during the walk around, which document determines remarks or exceptions which must be observed?
CDL
Configuration deviation list
What is the minimum pavement width for 180° turn with a 5 foot safety margin?
58ft
In case of failure of both left and right hydraulic system, Accumulators in both hydraulic brake systems provide pressure for at least how many brake applications?
One
While towing, the torque links may be disconnected to allow towing at any angle, as long as the NLG shock strut extension exceeds how many inches of visible chrome?
3.5 inches
The brake control unit BCU provides antiskid protection down to how many knots on each mean wheel?
10 kts
What is the maximum tire speed?
182 kts
What is the maximum landing gear retraction speed?
200 KIAS
With the torque link connected, what is the maximum degree of nose gear rotation left or right of center?
120 degrees
In the event of a red NORM BRAKES FAIL message braking can be achieved by…
Pulling the parking/ Emer brake
Regarding wheel breaks, what must be calculated before takeoff following a rejected takeoff?
Brake cooling times
Found in Performance section of AFM
What actions prevent hydraulic fluid migration while setting the the parking brake?
Left and right hydraulic system pressurized
Depress toe pedals
Then pull up on the parking brake handle
What is the maximum speed at which the gear may be in a down and lock position?
250 KIAS
How much nosewheel steering authority does the pilot have through the rudder pedals?
7 degrees
How much steering authority does the pilot have through the tiller?
65 degrees
What are the memory items for a red GEAR BAY OVERHEAT message?
Airspeed max 25 KIAS
Landing gear - DN
What is the memory item for a red NORM BRAKE FAIL CAS message ?
After landing
Flight spoilers…. EMER
PARK/ Emer brake …. Pull Smoothly
What is the memory item for rejected takeoff?
Thrust levers- Idle
Brakes - Max or as required
Thrust Reversers - Max or as required
What is the VLO RET speed ?
200 KIAS
What is the VLO EXT speed ?
250 KIAS
What is the VLE speed ?
250 KIAS
Can the challenger 350 Aircraft takeoff Or land from a gravel runway?
No
Which hydraulic system normally extends and retracts the landing gear?
Left hydraulic system
Which system provides landing gear position monitoring?
Proximity sensor system
What type of brakes does a Challenger 350 Aircraft use?
Carbon brakes
Is antiskid operational when using the park/emergency brake?
No
The proximity sensing system PSS consist of which to subsystems?
Proximity sensing electronic unit. PSEU
PROXIMITY SENSORS
Our normal braking and nose wheel steering available in flight?
No they are disabled by the PSEU
When looking at the gear position on the EICAS, what does an amber square with Amber diagonal lines crossing through it indicate?
The applicable gear is not up
Is not down and locked
And it disagrees with the gear handle commanded position
When towing, how many degrees left or right can the nose wheel travel without being disconnected?
120 degrees
What indications advise the crew that the nose wheel steering NWS limit has been exceeded?
EICAS message and a visible pin
