# SDR UALA2013041102487

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2013
- Submitted: May 22, 2013
- Operation: Air carrier
- Aircraft: N549UA
- Make and model: Boeing 757222
- Aircraft serial: 25397
- Aircraft time: 80,380 hours, 23,156 cycles
- Engine: Pwa PW2037
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Bypass Valve
- Part number: S270T01013
- Part serial: 4846
- Condition: Failed
- Location: Te Flaps
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013041102487

## Discrepancy

TRAILING EDGE FLAP DISAGREE EICAS MESSAGE WHEN FLAPS MOVED HYDRAULICALLY.  REMOVED AND REPLACED TRAILING EDGE FLAP BYPASS VALVE IAW AMM.  OPS AND LEAK CHECKED GOOD.

---
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.