ATR72-600 SYSTEMS Exam Questions with Correct Answers Verified by Experts|
Latest Update
The fuel governing mode is cancelled with : propeller feathered (No ACW)
PAX SUPPLY PB ON 25% off the passengers
LO PR OXYGEN supply below 50 psi.
OXY on FWS
ENGINE FIRE HANDLE Pulled on the respective engine (6) - FUEL: LP valve closed
- PROP: feather
*** Hydraulic to prop brake closed on engine 2
- DEICING: deice and shutoff valve closed
- ELEC : DC and ACW gen. disconnected
- AIR: BLEED and HP valve closed
- SQUIBS armed lts illumination
FIRE TEST MW + CRC + ENG 1 FIRE on FWS + fire handle illuminated + FUEL
+ S/O light on CL (if out of FUEL S/O position)
PITCH TRIM ASYM Amber labels pitch tabs desynchronization greater than 0.7°
,Each tank is fitted with (3) - a vent surge tank to ensure positive pressure and allows a
thermal expansion without spillage
- a main wing tank
- a feeder tank, always full to protect the engine feed system against negative or lateral load
factors
Feeder tank - always full to protect the engine feed system against negative or lateral load
factors
- 200 L / 160 kg
Vent surge tank - ensure positive pressure and allows a thermal expansion without spillage
- 100 L
The FEED LO PR amber light extinguishes when: pressure is < 4 psi in the pipe.
The electrical pump is de-energized when: Engine Feed Jet Pump outlet pressure reaches 8.5
PSI, the electrical pump is de-energized after 30s time delay.
Conditions to energize the electrical pump (3) - Cross feed operation
- Engine Feed Jet Pump outlet pressure drops below 5 psi
- Low Level
, 2 reasons that shows FUEL LO LVL, that cause the electrical pump to be automatically activated
: (2) - LO LVL with fuel quantity indicator
< 160 kg → Low level of remaining fuel in the tank.
- LO LVL with fuel quantity indicator
> 160 kg → Feeder tank not full due to a failure of the feeder jet pump.
FEED LO PR (amber) Delivery pressure < 4 PSI.
Pump failure or fuel starvation.
***FWS.
XFEED valve (Fuel) Activates both elect fuel
pumps.
Electrical fuel pump runs automatically if (4) - jet pump press < 5 PSI or till
reaching 8.5 PSI during engine start
- XFEED in line
- fuel LO LVL
* When the quantity is
< 160 kg
or * When the quantity is
> 160 kg, but the feeder
tank is not full (Feeder jet pump failure)
- during fuel quantity test
Latest Update
The fuel governing mode is cancelled with : propeller feathered (No ACW)
PAX SUPPLY PB ON 25% off the passengers
LO PR OXYGEN supply below 50 psi.
OXY on FWS
ENGINE FIRE HANDLE Pulled on the respective engine (6) - FUEL: LP valve closed
- PROP: feather
*** Hydraulic to prop brake closed on engine 2
- DEICING: deice and shutoff valve closed
- ELEC : DC and ACW gen. disconnected
- AIR: BLEED and HP valve closed
- SQUIBS armed lts illumination
FIRE TEST MW + CRC + ENG 1 FIRE on FWS + fire handle illuminated + FUEL
+ S/O light on CL (if out of FUEL S/O position)
PITCH TRIM ASYM Amber labels pitch tabs desynchronization greater than 0.7°
,Each tank is fitted with (3) - a vent surge tank to ensure positive pressure and allows a
thermal expansion without spillage
- a main wing tank
- a feeder tank, always full to protect the engine feed system against negative or lateral load
factors
Feeder tank - always full to protect the engine feed system against negative or lateral load
factors
- 200 L / 160 kg
Vent surge tank - ensure positive pressure and allows a thermal expansion without spillage
- 100 L
The FEED LO PR amber light extinguishes when: pressure is < 4 psi in the pipe.
The electrical pump is de-energized when: Engine Feed Jet Pump outlet pressure reaches 8.5
PSI, the electrical pump is de-energized after 30s time delay.
Conditions to energize the electrical pump (3) - Cross feed operation
- Engine Feed Jet Pump outlet pressure drops below 5 psi
- Low Level
, 2 reasons that shows FUEL LO LVL, that cause the electrical pump to be automatically activated
: (2) - LO LVL with fuel quantity indicator
< 160 kg → Low level of remaining fuel in the tank.
- LO LVL with fuel quantity indicator
> 160 kg → Feeder tank not full due to a failure of the feeder jet pump.
FEED LO PR (amber) Delivery pressure < 4 PSI.
Pump failure or fuel starvation.
***FWS.
XFEED valve (Fuel) Activates both elect fuel
pumps.
Electrical fuel pump runs automatically if (4) - jet pump press < 5 PSI or till
reaching 8.5 PSI during engine start
- XFEED in line
- fuel LO LVL
* When the quantity is
< 160 kg
or * When the quantity is
> 160 kg, but the feeder
tank is not full (Feeder jet pump failure)
- during fuel quantity test
