What was found
ATTEMPTED TWO STARTS OF APU, NO LIGHT OFF AND FAULT LIGHT DISPLAYED. REPLACED EXCITER BOX. FL 340 APU RUNS NORMAL. CREW CONFIRMED APU OPERATED NORMAL.
- Difficulty date
- August 3, 2010
- Submitted
- August 4, 2010
- Operation
- Air carrier
- Aircraft
- N543UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25698
- Aircraft time
- 71,866 hours, 20,853 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 106170756
- Part serial
- 156
- Condition
- Failed
- Location
- Apu
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.