LANDING GEAR AND HYDRAULICS (CSG) Flashcards
Ldg Gr & Hydro
(T/F) The landing gear are held down and locked using a combination of hydraulic pressure and mechanical locks.
False
AOH Vol 2, Section 21
Ldg Gr & Hydro
(T/F) The nose gear is mechanically linked to the outer oil cooler door to aid in cooling the oil when the nose gear is down.
True
AOH Vol 2, Section 21
Ldg Gr & Hydro
When checking the brake wear indicators on the main wheels, when must the brakes be serviced?
When the indicator pins are flush with the sleeve
AOH Vol 2, Section 21
Ldg Gr & Hydro
(T/F) The landing and taxi lights only turn on when the landing gear are down and locked.
True
AOH Vol 2, Section 22
Ldg Gr & Hydro
How do fuse plugs work?
Core of the plugs melt under excessive heat and allow air and
heat to escape from the tire
AOH Vol 2, Section 21
Ldg Gr & Hydro
If the pilot and copilot apply the brakes at the same time, how will the aircraft respond?
Pilot applying most pressure on each brake has control
AOH Vol 2, Section 21
Ldg Gr & Hydro
Nominal system pressure for the hydraulic system is ______ psi. A pressure switch turns the pump on if system pressure drops below ______ psi. If system pressure drops below ______ psi, the CAWS HYDR light will illuminate.
2800 +/-75,
2450,
1800
AOH Vol 2, Section 21
Ldg Gr & Hydro
During the walk-around inspection, when checking the low pressure reservoir at the cargo door, what indications should you see for normal status?
fluid visible in the inspection window; nitrogen pressure in the black band
AOH Vol 2, Section 21
Ldg Gr & Hydro
The hydraulic pump is on the _________ bus and is controlled by the ________ bus. Amp draw may be up to _____ Amps.
Battery Power Line,
Non-Essential,
100
AOH Vol 2, Section 21
Ldg Gr & Hydro
Can the hydraulic pump and the VCCS compressor be operated at the same time?
No
AOH Vol 2, Section 21
Ldg Gr & Hydro
What three malfunctions in the hydraulic system will illuminate the CAWS HYDR light?
Low pressure,
continuous pump operation more than 10 minutes,
After weight on wheels if system has operated more than 6 times in an hour with no gear handle actuation
Ldg Gr & Hydro
After experiencing a hydraulic system failure with no RESET, reduce airspeed below
______ KIAS. After _____ minutes, the landing gear may start to free fall.
177, 200
AOH Vol 1, Chapter 3
Ldg Gr & Hydro
What is the power source for the Landing Gear indicator lights?
Gen 1 bus
AOH Vol 2, Section 21
Ldg Gr & Hydro
What color are the indicator lights while the landing gear is in transit?
Red
AOH Vol 2, Section 21
Ldg Gr & Hydro
VLO is ______ KIAS
VLE is ______ KIAS
177, 236
AOH Vol 2, Section 21
Ldg Gr & Hydro
When will the landing gear warning tone sound?
Power in idle and <130 KIAS with gear handle up (silencer works)
Or
Flaps >15 with gear handle up (silencer will not work)
AOH Vol 2, Section 21
Ldg Gr & Hydro
When may the landing gear warning tone be silenced?
If flaps are not set to more than 15°
AOH Vol 2, Section 21
Ldg Gr & Hydro
(T/F) After an airborne Air/Ground (WOW) system failure, landing gear may be extended, but not retracted.
True
AOH Vol 2, Section 21
Ldg Gr & Hydro
Although unlikely, up to _____ strokes may be required to get down and locked
indications when using the hand pump.
“Complete lowering takes about 80 strokes.”
AOH Vol 1, Chapter 3 (3.2.5.2 Change 9)
Ldg Gr & Hydro
(T/F) If one main gear is not down, it is recommended to land with gear up.
True
AOH Vol 1, Chapter 3
Ldg Gr & Hydro
(T/F) If a landing gear or hydraulic system malfunction is encountered or when aircraft configuration cannot be changed, only a full stop landing will be made.
True
AFMAN 11-2U-28 Vol 3
