# SDR UALA2009060501613

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 5, 2009
- Submitted: June 8, 2009
- Operation: Air carrier
- Aircraft: [N665UA](https://openairdocs.org/aircraft/N665UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29237
- Aircraft time: 38,622 hours, 10,775 cycles
- Engine: Pwa PW4056
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Bypass Valve
- Part number: 471111201
- Part serial: 4566
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009060501613

## Discrepancy

LEFT ENGINE FUEL OIL COOLER BYPASS VALVE ASSY HAS A RUNNING OIL LEAK AROUND ASSY.  RE-CLEANED AREA WITH CONTACT CLEANER AND RE-RUN ENGINE AND BYPASS ASSY IS DRIPPING AFTER ENGINE SHUTDOWN.  OIL IS VISIBLE RUNNING DOWN FWD CONNECTORS OF BYPASS VLV.

---
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.