# SDR UALA2010110304094

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 3, 2010
- Submitted: November 5, 2010
- Operation: Air carrier
- Aircraft: [N797UA](https://openairdocs.org/aircraft/N797UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26924
- Aircraft time: 56,758 hours, 8,149 cycles
- Engine: Pwa PW4090
- Engine time: 52,019 hours, 7,338 cycles
- System (JASC): [7210 · Turbine Engine Reduction Gear](https://openairdocs.org/jasc/7210)
- Part: Tube
- Condition: Leaking
- Location: Nr 2 Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010110304094

## Discrepancy

NR 2 ENG HOC.  OPENED ENGINE, OIL LEAKAGE CKD.  FOUND THE MAIN GEARBOX OIL PRESSURE TUBE LOCKPLATE LOOSENED, RETIGHTENED BOLTS AND TUBE CKD OK.  RAN ENGINE, NO LEAKAGE FOUND. CKD OIL QUANTITY BY EICAS, SHOWS NORMAL.  TUBE ASSY REF IPC 79-21.  BOLT REF IPC.  RAN ENGINE, REF JRH 2-2-1.

---
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.