Landing Gear & Brakes Flashcards
If the airplane is landed with 1200 psi on the brake accumulator gauge and the normal brakes fail, will the emergency brake be available?
No, it must be charged to allow braking
What does the light in the landing gear handle indicate
If the handle is up- at least one gear door is not closed
If the handle is down- at least one landing gear is not down and locked
What does the anti-skid system compare wheel speed to in order to evaluate if a wheel is in a skid
IRS groundspeed and wheel speed sensors
From what hydraulic system can the parking/ emergency brake system be recharged?
AUX system
If the parking/ emergency brake is used to stop the aircraft, what type of anti-skid protection is available?
None
Where can individual brake temps be observed
On the BRAKES 1/6th synoptic page
What does pulling the Emergency landing gear T handle do?
It repositions the dump valves allowing fluid to be returned to the reservoir and releases nitrogen to extend the landing gear
How are the landing gear handle and the landing gear selector valve connected?
Electrically
Explain how to set the parking brake
Pull the P-brake handle up, rotate 90°, and ensure brake accumulator pressure reads 1700psi
How would failure of the gear door to close after landing gear retraction be indicated on the flight deck?
Red light in gear handle
What is the first action that should be taken if the WOW circuit fails to shift to the airborne mode after takeoff
Turn off the ground spoiler arming switch
What is the function of the dump valve switch on the overhead panel?
It resets the dump valves to hydraulic operation so that the
Landing gear can operate normally
What is the accumulator pre-charge pressure for the parking/ emergency brake?
1200psi, increasing or decreasing 25psi for each 10°f above or below 70°f
How are the landing gear doors opened for a preflight inspection
Install the door control valve pins, and open the doors by operating the ground service valve
If closed landing gear up lock is discovered during preflight inspection, how can it be opened
Install the door control valve pins and open the unlock by operating the ground service valve
During preflight inspections, what is the correct indication on the emergency landing gear extension bottle
3100psi at 70°
What is the indication if the nose landing gear has been turned beyond its designed limit
The nose wheel steering unit over travel indication on the nose gear will trip. Indicating maintenance action required
How can proper brake wear be determined
By observing the landing gear brake wear indicators, with the parking brake set
Inflight, when should the brake accumulator be charged back to 3000 psi
Just prior to landing
Where in the cockpit can the emergency gear extension bottle pressure be read?
On the hydraulics and summary synoptic pages
At approximately how many degrees of travel will the over travel indicator pop up on the nose wheel steering collar
80 to 84°
At approximately what pressure will the main tire over inflation safety plug release
450 psi
At approximately what temperature will any one of the four main fusible plugs melt and release pressure
199°C
What is the travel authority of the tiller steering
Variable rate steering +/- 80 ° <18 knots, decreasing to approximately +/-16°as IRS speed increases
What is the normal pedal steering authority
+/-7°
What is the pedal steering authority if the tiller steering should fail
+/-16°
If an amber ANTI-SKID FAIL message is displayed n flight, should the anti-skid be turned off?
No, the anti-skid system may still be partially operative
What is the normal nose wheel tire pressure?
115 psi
What is the recommended maximum speed for use of the tiller wheel
60 KCAS
If the blue NWS FIXED GAIN CAS message is displayed, what is the effect on the tiller steering
IRS input to the tiller is lost, and steering authority will be constant at all speeds
