What was found
APU FAULT LIGHT ILLUMINATES DURING START. ACFT GROUNDED. REMOVED AND REPLACED EXCITER IGNITION UNIT IAW AMM 49-41-31.
- Difficulty date
- July 13, 2016
- Submitted
- July 15, 2016
- Operation
- Air carrier
- Aircraft
- N534AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35202
- Aircraft time
- 21,947 hours, 6,405 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 38880587
- Part serial
- 086971101476
- Condition
- Failed
- Location
- Apu
- Part time
- 1,797 hours, 3,833 cycles
- Stage of operation
- NR
- 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.