Fuel System & associated Malfunctions

Question 1

The fuel system provides approximately _____lbs. of usable fuel through single point refueling.

Answer 1

1,100 lbs.

Question 2

An additional ______lbs. is available if manually filled to the base by over the wing.

Answer 2

100 lbs.

Question 3

How many integral fuel tanks are built into the T-6?

Answer 3

Three (2 wing, one collector)

Question 4

When parking on ramps with greater than ___ slope, the fuel system may vent fuel overboard through the _________________.

Answer 4

1%; pressure relief valve

Question 5

An auto balance system keeps the fuel level in the wing tanks within ______lbs. of each other.

Answer 5

20 lbs.

Question 6

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.

Answer 6

20 lbs.; 30 seconds

Question 7

If the fuel imbalance is not reduced to less than _____lbs. within ___minutes, the _______ annunciator will illuminate & the auto balance system will shut off.

Answer 7

30 lbs.; 2 minutes; FUEL BAL

Question 8

True/False: The FUEL BAL annunciator will automatically shut off.

Answer 8

FALSE, the system must be reset

Question 9

Can you reset the fuel balance system multiple times?

Answer 9

Yes, multiple times may be required to auto balance the fuel

Question 10

There are 6 fuel annunciators on the CWS

Answer 10

a. Red FUEL PX-indicates

Question 11

True/False: Do not attempt to manually balance fuel load if AEDD indicates FP FAIL.

Answer 11

True, the annunciation may not be correct & this could cause an imbalance

Question 12

How many fuel probes are there & what are the locations?

Answer 12

7 total; 3 in each wing, 1 in collector tank

Question 13

The outer fuel probe provides readings until approx. _____±____ lbs.

Answer 13

445±50 lbs.

Question 14

The middle fuel probe provides readings until approx. _______±_____ lbs.

Answer 14

308±50 lbs.

Question 15

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

Answer 15

20 lbs.

Question 16

True/False: Automatic fuel balancing will be available with FP FAIL.

Answer 16

FALSE

Question 17

During inverted flight, a ________ in the pickup valve closes off the normal fuel pickup and opens the _____________.

Answer 17

Weighted rod; inverted flight fuel pickup

Question 18

The inverted flight fuel pickup provides a minimum of how man seconds of fuel regardless of orientation?

Answer 18

15 seconds

Question 19

A ____________ or ____________ in the collector tank feeds fuel to the engine driven low pressure fuel pump.

Answer 19

primary jet pump; electric boost pump

Question 20

The engine driven high pressure pump supplies fuel to the ______.

Answer 20

Fuel management unit (FMU)

Question 21

Which pump serves as a backup to the engine driven low pressure pump?

Answer 21

Electric boost pump

Question 22

Will the engine fail if the electric boost pump & engine driven low pressure pump fail?

Answer 22

No, the engine driven high pressure pump with suction feed for continued operation, but is limited to 10 hours

Question 23

If the engine driven high pressure pump fails, what happens?

Answer 23

The engine will flameout & cannot be restarted

Question 24

If the FUEL PX annunciator illuminates & the boost pump activates during inverted flight, what should you do?

Answer 24

Cease inverted maneuvers & notify maintenance after flight

Question 25

Unless a greater emergency exists, do not reset the ___________ circuit breaker if open.

Answer 25

BOOST PUMP

Question 26

How many times can you reset the FUEL BAL circuit breaker?

Answer 26

Only once

Question 27

True/False: With a full lateral fuel imbalance, sufficient lateral authority exists to control the aircraft?

Answer 27

True; expect increased stick forces