- Difficulty date
- March 30, 2019
- Submitted
- April 1, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36355
- Aircraft time
- 20,628 hours, 6,769 cycles
- Part
- Exciter
- Part number
- 38880587
- Part serial
- 000131594
- Condition
- Faulted
- Location
- Apu
- Part time
- 5,867 hours, 11,284 cycles
- Stage of operation
- LD
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, APU FAILED TO START, FAULT LIGHT ILLMUMINATED. GROUNDED - YES. PERFORMED APU BITE AND GOT FAULT CODE 49-41011. REF B737-900 FIM 49-40 TASK 802 REMOVED & REPLACED IGNITION UNIT REF B737-900 AMM 49-41-31. OPS CHECK GOOD REF AMM 49-11-00 W/ NO FAULTS FOUND. THIS CLEARS MEL 49-1B.