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What is the Maximum combined fuel on the Saab 340
5690 lbs (850 gals)
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What is the Maximum fuel per wing
2845 lbs (425 gals)
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Does the Saab 340 have negative G fuel capabilities
Yes, through the negative g canister in the hopper tank
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What does an illuminated LOW LEVEL indicate
Less than 300 (+/-70 lbs) in the respective tank
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Does the Fuel quantity indicator show usable or total fuel
Usable
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How many ways are there to check fuel quantity and what are they
3: Fuel quantity indicators, Magnetic sticks, Fuel panel gauges
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At what quantity do the magnetic fuel quantity indicators become useful
When fuel levels are below 1,100 lbs
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Where are the Standby pressure pumps located
In the hopper tank
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What does an illumated MAIN PUMP light indicate
A failure of the main pump
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When is the STBY PUMP activated
MAIN PUMP failure
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What does an illuminated green STBY PRESS light indicate
Standby pressure is detected at a main pump inlet
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Can the right pump supply fuel to the left engine
Yes, through the cross feed valve
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What powers the Standby pressure pumps
Respective Battery Bus
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What powers the Main Pumps
Engine accessory gear box
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What supplies fuel to the engine during engine start
The Standby pressure pump
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When does the automatic activation of the STBY PRESS pump not occur with a decrease in Main pump pressure
With the condition lever in fuel off
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How many fuel pumps are on the Saab
6: 2 main pumps, 2 standby pumps, and 2 high pressure pumps in the HMU
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What lights on the overhead panel do not trigger a CWP FUEL light
- X FEED ON
- CONN VLV
- STBY PRESS
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How is the Fuel Shut Off valve closed
Pulling of the Fire Handle
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What is indicated by an illuminated VALVE CLOSED light
Fuel shut off valve is closed
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What is indicated by an illuminated XFEED ON light
The cross feed valve is open
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What is indicated by an illuninated CONN VALVE light
The fuel connect valve is open
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What is the purpose of the fuel connect calce
To balance fuel by gravity transfer
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What is indicated by an illuminated FUEL FILTER light
An impending bypass of the Fuel Filter (over 18 PSI)
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What is the maximum pressure for single point refueling
50 PSI
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What does an illuminated FUELING light indicate
- The fuel panel switch is selected ON
- The defueling valve is open
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Where does the fueling panel get power from
Right Hot Battery Bus
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If an automatic level control circuit fails and causes an overfill, what happens
An overfill sensor in each outboard tank closes the related valve and illuminates the OVER FULL light to come on
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To achieve maximum capacity what fueling procedure is used
Over wing fueling
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How is defueling accomplished
- Pressure defueling uses Standby pumps to pump fuel from the aircraft
- Suction defueling requires the fuel truck to draw fuel from the aircraft
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