Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
October 21, 2017
Submitted
October 23, 2017
Operation
Air carrier
Aircraft
N478AS
Make and model
Boeing 737990ER
Aircraft serial
44105
Aircraft time
9,122 hours, 3,079 cycles
Part
Warning Light
Condition
False Activation
Location
Apu Fault
Stage of operation
TX
How discovered
O
Nature of condition
N
Precautionary procedure
D

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

APU FAULT LIGHT ILLUMINATED FOR 1 MINUTE, AFTER TURNING IT OFF AFTER ENGINE START. ACFT GROUNDED. ACCOMPLISHED APU BITE CHECK IAW FIM 49-60, 801. NO CURRENT FAULTS LOGGED. FAULT 49-61223. FOUND TO BE INTERMITTENT. APU GROUND VERIFICATION CHECKED NORMAL.