Fuel System & associated Malfunctions Flashcards
The fuel system provides approximately _____lbs. of usable fuel through single point refueling.
1,100 lbs.
An additional ______lbs. is available if manually filled to the base by over the wing.
100 lbs.
How many integral fuel tanks are built into the T-6?
Three (2 wing, one collector)
When parking on ramps with greater than ___ slope, the fuel system may vent fuel overboard through the _________________.
1%; pressure relief valve
An auto balance system keeps the fuel level in the wing tanks within ______lbs. of each other.
20 lbs.
When a fuel imbalance of _____ lbs. or more is detected for more than _____ seconds, the transfer valve will close the motive flow line to the light tank.
20 lbs.; 30 seconds
If the fuel imbalance is not reduced to less than _____lbs. within ___minutes, the _______ annunciator will illuminate & the auto balance system will shut off.
30 lbs.; 2 minutes; FUEL BAL
True/False: The FUEL BAL annunciator will automatically shut off.
FALSE, the system must be reset
Can you reset the fuel balance system multiple times?
Yes, multiple times may be required to auto balance the fuel
There are 6 fuel annunciators on the CWS
a. Red FUEL PX-indicates
True/False: Do not attempt to manually balance fuel load if AEDD indicates FP FAIL.
True, the annunciation may not be correct & this could cause an imbalance
How many fuel probes are there & what are the locations?
7 total; 3 in each wing, 1 in collector tank
The outer fuel probe provides readings until approx. _____±____ lbs.
445±50 lbs.
The middle fuel probe provides readings until approx. _______±_____ lbs.
308±50 lbs.
The inner probe provides fuel readings until approx. ______ lbs. since the collector tank only has one provide & divides its capacity equally between both tank readings
20 lbs.
True/False: Automatic fuel balancing will be available with FP FAIL.
FALSE
During inverted flight, a ________ in the pickup valve closes off the normal fuel pickup and opens the _____________.
Weighted rod; inverted flight fuel pickup
The inverted flight fuel pickup provides a minimum of how man seconds of fuel regardless of orientation?
15 seconds
A ____________ or ____________ in the collector tank feeds fuel to the engine driven low pressure fuel pump.
primary jet pump; electric boost pump
The engine driven high pressure pump supplies fuel to the ______.
Fuel management unit (FMU)
Which pump serves as a backup to the engine driven low pressure pump?
Electric boost pump
Will the engine fail if the electric boost pump & engine driven low pressure pump fail?
No, the engine driven high pressure pump with suction feed for continued operation, but is limited to 10 hours
If the engine driven high pressure pump fails, what happens?
The engine will flameout & cannot be restarted
If the FUEL PX annunciator illuminates & the boost pump activates during inverted flight, what should you do?
Cease inverted maneuvers & notify maintenance after flight
Unless a greater emergency exists, do not reset the ___________ circuit breaker if open.
BOOST PUMP
How many times can you reset the FUEL BAL circuit breaker?
Only once
True/False: With a full lateral fuel imbalance, sufficient lateral authority exists to control the aircraft?
True; expect increased stick forces
