APU

Question 1

APU fuel consumption rate

Answer 1

150 lb/hr

Question 2

purpose of prime boost pump for apu

Answer 2

provides fuel for starting and sufficiently pressurized fuel for ops above 8000 ft PA

Question 3

min APU accumulator pressure

Answer 3

2650 psi

Question 4

APU equivalent of DECU

Answer 4

DESU

Question 5

can the DESU shut the APU down

Answer 5

yes

Question 6

what is required to hold DESU BIT info

Answer 6

DC power and APU ctrl switch left on

Question 7

Why might we get an APU fail indication

Answer 7

high Ng, low Ng, high TGT, low TGT, low oil px, start sequence fail