What was found
APU FAILED TO START AFTER LANDING. TWO ATTEMPTS FAULT LIGHT ILLUM. GROUNDED - YES. REMOVED AND REPLACED APU IGNITION EXCITER PER AMM 49-41-31 OPS CHECK NORMAL.
- Difficulty date
- July 3, 2018
- Submitted
- July 9, 2018
- Operation
- Air carrier
- Aircraft
- N461AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36363
- Aircraft time
- 17,112 hours, 5,640 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 38880585
- Condition
- Malfunctioned
- Location
- Apu
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.