What was found
FLT NO: MGE 402, APU FAULT ON THE GROUND, UNABLE TO START APU. PERFORMED ECU BITE TEST, MINI FLAGS 28 AND 91. ISOLATED ISSUE TO APU EXCITER. MX R/R APU EXCITER, OPS CHECK.
- Difficulty date
- July 2, 2025
- Submitted
- July 4, 2025
- Operation
- Air carrier
- Aircraft
- N193AN
- Make and model
- Boeing 757223
- Aircraft serial
- 32387
- Aircraft time
- 68,519 hours, 18,435 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 4492036
- Part serial
- 220177
- Condition
- Faulted
- 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.