What was found
APU FAILED TO START. BITE CHECK SHOWS IGN. NEED IGN UNIT EXCITER PER 757AMM. APU STARTED NORMALLY.
- Difficulty date
- May 9, 2011
- Submitted
- May 12, 2011
- Operation
- Air carrier
- Aircraft
- N589UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28707
- Aircraft time
- 53,443 hours, 14,908 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 106170756
- Part serial
- 238
- 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.