# SDR 2007UALA02540

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2007
- Submitted: July 13, 2007
- Operation: Air carrier
- Aircraft: [N924UA](https://openairdocs.org/aircraft/N924UA), registered now
- Make and model: Boeing 737522
- Aircraft serial: 26645
- Aircraft time: 42,285 hours, 30,785 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Condition: Unknown
- Stage of operation: TX
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA02540

## Discrepancy

APU POWER PROBLEMS.   [08-08-07]   REPLACED APU GENERATOR TRANSFORMER T2 AS A PRECAUTION. OPERATIONAL CHECKS NORMAL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.