Landing Gear, Brakes and Steering Flashcards
An NWS LIMIT EXCEEDED (caution) CAS message indicates that _____. As a result, crew should _____.
a call to MX is required—the nosewheel has
been turned beyond 120°
check shear pins—if broken, then the nose wheel has exceeded 123° and possible damage has occurred
_____° of steering authority is available with the tiller.
65
_____° of steering authority is available with the rudder pedals.
7
Nose gear steering is actuated by the _____ hydraulic system.
LEFT
During retraction, the nose gear is centered _____.
electrically by the Steering Control Unit (SCU); mechanically by the cams on the top of the nose strut
Antiskid is available down to a speed of _____ kt.
10
Brake cooling times must be observed in order to _____.
ensure that there is sufficient brake energy available to come to a complete stop within the charted distance if a takeoff is rejected
Landing gear is normally actuated by the _____ hydraulic system
LEFT
The landing gear is held up via _______.
Mechanical uplocks
When there is a loss of R and L hydraulic pressure, the brake accumulators function to provide _____.
one continuous application of toe brakes to a complete stop
The parking brake accumulator has sufficient pressure for _____ applications and should hold for _____ hours.
-Six
-24 hours
If a gear control or left hydraulic system failure occurs, the landing gear is extended by _____.
an alternate method per the checklist—pull the manual release handle (LG PULL); gear extends via gravity
The LG PULL handle functions to _____.
manually release the uplocks (nose and main gear); actuate the dump valves (port fluid pressure to the return side of actuator)
The LG PULL handle should be stowed after _____.
landing and after the gear pins are installed
The _____ also assists the main gear freefalling to fully extended (down and locked) position.
main landing gear down-lock assist accumulator
The pressure read for the main landing gear down-lock assist accumulator is _____.
a purple-banded gauge located in the battery
compartment
In the event of a HYD PRESS LOW (red) CAS message, the alternate gear extension procedure is in use. If flaps have already extended, what other factor may be of concern?
30 min are required to extend the landing gear. The gear lockdown assist accumulator will retain pressure for 30 min. Gear must be down prior to this time limitation if the flaps are at
other than 0°.
The brake wear indicators are checked with _____.
the Hydraulic System pressurized and the parking brake set—the wear pins are not flush with the housing
The brake accumulator gauges are located in _____.
the battery bay
Under a NORMAL BRAKES FAIL warning condition, braking is applied by _____ in order to stop the aircraft.
pulling the Emer/Parking Brake smoothly
Under a NORMAL BRAKES FAIL warning condition, during application of Emer/Parking Brake, will anti-skid or differential braking be available?
NO
The tire pressures for the Challenger 300 are: _____
Nose—113-119 PSI; mains—157-165 PSI
The tire pressures for the Challenger 350 are: _____
Nose—113-119 PSI; mains—167-175 PSI
_____ prevent the main tires from exploding in an overheat situation.
Four fuse-sensitive plugs in each wheel
assembly
There are _____ brake wear indicator pins on each brake assembly, located _____
-Two
-1 on top and 1 underneath
What (2) conditions cause GEAR warnings?
1) Below 500 ft AGL, gear is up or in transit, thrust lever angle < 26°—aural warning, “GEAR” (may also be accompanied by TAWS warning, “TOO LOW, GEAR”).
2) Flaps beyond 27° before all three landing
gear are down and locked°—aural warning,
“GEAR.”
Gear warning (4) indications include: _____.
-Aural warning
-Triple chime
-Red warning light
-Red on gear indications display
Components (3) of the landing gear monitored by the Proximity Sensing System include: _____.
-Main lading gear
-Nose gear
-Nose gear doors
