SECTION 14 - Landing Gear & Brakes Flashcards
If the nutcracker “TEST” switch is pressed while on the ground, what is the affect on the landing gear system?
The landing gear handle down-lock solenoid will be momentarily unlocked
What is the recommended procedure if the landing gear fails to retract after takeoff?
Place the gear handle down and return for landing
What is the first action to take following an unsuccessful nutcracker test?
Turn the ground spoiler switch OFF
What is the purpose of the Aux Pump / Brake System Check?
To check the automatic latch-on feature of the aux hydraulic pump
If the airplane is landed with 1,200 psi on the brake accumulator gauge (assuming proper pre-charge) and the normal brakes fail, will the emergency brakes be available?
No
Gulfstream has recommendations regarding landing the airplane with less than all 3 landing gear down and locked. Where are these procedures found?
The AFM, emergency procedures section
What does the red 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
If the parking / emergency brake system is used to stop the aircraft, what type of anti-skid protection is available?
None
Where are the brake temperatures read?
Brakes synoptic page (SPZ-8400) or BTMS (if installed)
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 the nitrogen to extend the landing gear
How are the landing gear handle and the landing gear selector valve connected?
Mechanically
Describe how to set the parking brake.
Pull the brake handle up, turn it 90°, and ensure that the brake accumulator pressure reads at least 1,700 psi
How would a failure of a gear door to close after gear retraction be indicated on the flight deck?
Red light in gear handle
What is the first action that should be taken if the nutcracker system fails to shift to the airborne mode after takeoff?
Disarm the ground spoilers
If the left nutcracker switch is indicating in-flight, and the right nutcracker switch is on the ground, will the systems respond as if they are airborne or on the ground?
Airborne
What is the function of the dump valve D-ring handle?
It resets the dump valves to hydraulic operation so that the landing gear can operate normally
What is the correct accumulator pre-charge pressure for the parking / emergency brake?
1200 psi, increasing or decreasing 25 psi for each 10° F above or below 70° F
How are the landing gear doors opened for a preflight walk -around?
Install the door control valve pins, and open the doors by operating the ground service valve
If a closed landing gear uplock is discovered during the preflight walk-around, how can the uplock be opened?
Install the door control valve pins and open the uplock by operating the ground service valve
During the preflight walk-around, what is the correct indication on the emergency landing gear extension bottle gauge?
3000 psi at 70° F
What is the normal pedal steering authority?
+/- 7 degrees
What will prevent the tires from blowing due to excessively hot brakes?
Wheel fuse plugs
What physical actions must be taken prior to towing the airplane?
The steering link pin must be removed, the landing gear lock pins must be installed, and the cabin door must be closed or supported by a jury cable
What is the indication of a successful brake BITE check?
3 CAS messages generated and cleared ( 4 messages for brake-by-wire aircraft)
How does the anti–skid system determine if a wheel is skidding?
By comparing the wheel speed sensor to either its same wheel on strut (brake-by-wire) or opposite wheel (HMAB)
What brake message{s) must be cleared prior to takeoff?
The amber “BRAKE FAIL” CAS message (all aircraft), and the amber “BRAKE PEDAL” CAS message (brake-by-wire only)
What is the maximum altitude for flying with the landing gear extended?
20,000 feet MSL
What are the maximum landing gear operating speeds?
- Normal gear extension - 225 KCAS (0. 70 MT)
2. Emergency gear extension - 175 KCAS
What is the maximum landing gear extended speed?
250 KCAS (0.70 MT)
What are the maximum tire speed limitations?
- Non-SP aircraft - 182 knots
2. SP aircraft - 195 knots
Is a takeoff permitted with the anti-skid inoperative?
Takeoff is permitted with the anti-skid inoperative, provided ground spoilers are operative, 20° flaps are used, and the cowl and wing antiicing systems are not used
Describe the limitation associated with missing airframe & engine parts.
The airplane must be operated in accordance with the limitations specified in the AFM, and as amended by the CDL, AFM Appendix B
