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Phenom 300E1 Landing Gear Question Bank
Systems questions
11
Aviation
Professional
07/20/2023

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Term
The landing gear is __________and__________
Definition
electrically actuated and hydraulically operated
Term
Where is the landing gear emergency handle located?
Definition
Under the cockpit floor between the pilot seats.
Term
What holds the landing gear in the up position?
Definition
An uplock box on each gear.
Term
Explain the Emergency Extension process.
Definition
Pull out the free-fall handle that activates the free-fall selector valve and releases
all residual hydraulic pressure from the landing gear lines to the return line, and
mechanically releases the landing gear uplocks. Gravitational and aerodynamic
forces extend the landing gear (the gear free fall). The downlock mechanism then
locks the gear in its fully extended position.
Term
When the flap lever is set to either 0, 1, or 2 position, when would the landing
gear aural warning sound?
Definition
*Difference between pressure altitude and LFE is less than 700’, or radio
altimeter indication less than 700’ AGL; and
*Airspeed is below 160kts; and
*Either thrust lever is set below 40 degrees for two operative engines; and
*Thrust lever of operative engine is set below 40 degrees for a one-engine
inoperative condition.
Term
When would the landing gear aural warning sound at flap lever 3 position or
FULL?
Definition
Regardless of thrust lever position, airspeed and altitude, the landing gear aural
warning cannot be silenced by pushing the WRN INHIB button.
Term
When would the landing gear aural warning sound if flaps failed?
Definition
The landing gear aural warning will sound when the difference between pressure
altitude and LFE is less than 700’ while descending.
Term
What is the primary input to the Air/Ground System?
Definition
Weight-on-Wheels (WOW)
Term
Name some of the aircraft systems that utilize the WOW signals:
Definition
‣ Brake Control System
‣ Landing Gear Control Lever
‣ FADEC (Full Authority Digital Engine Control)
‣ Electrical System
‣ Lights (Baggage Compartment)
‣ Air Conditioning and Pressurization
‣ Fuel System (Fuel Indication)
‣ Flight Controls (Flaps and Spoilers);
‣ Avionics (Data Concentrator Unit and GEA (Garmin Engine/Airframe unit) 3).
Term
What is the maximum turning radius?
Definition
Rudder pedals give up to 20 degrees of steering authority with another 23 degrees
thru differential braking and thrust
Term
What would a “LG WOW SYS FAIL” CAS message indicate?
Definition
There is disagreement between the signals from right and left WOW sensors
for more than 3 seconds.
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