Drain Fuel Sumps

Question 1

Why is it important to drain all of the fuel sumps before the first flight of the day?

Answer 1

Water can condense in the fuel tanks and it must be drained out before the aircraft is safe for flight

Question 2

Is the procedure of draining the sumps with the aircraft in the ground attitude an assurance that all of the water is removed from the tanks?

Answer 2

No,

Question 3

How does water appear in the fuel drained from the tank sumps?

Answer 3

Water appears as a clear globule in the Bottom of the container used to collect the fuel drained from the sumps

Question 4

What color is grade 100-ll fuel?

Answer 4

Blue

Question 5

How can you detect jet fuel in the sample taken from the sump drains?

Answer 5

Jet fuel is basically clear and it has an odor similar kerosine

Question 6

What must be done if the sump drains sample shows traces of jet fuel?

Answer 6

The fuel system must be drained and flushed out with the proper grade of aviation gasoline