# SDR UALA2011122907148

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2011
- Submitted: January 24, 2012
- Operation: Air carrier
- Aircraft: N174UA
- Make and model: Boeing 747422
- Aircraft serial: 24381
- Aircraft time: 85,411 hours, 9,576 cycles
- Engine: Pwa PW4056
- Engine time: 3,200 hours, 237 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Line
- Condition: Leaking
- Location: Nr 4 Engine Oil
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011122907148

## Discrepancy

NR ENGINE OIL LINE FROM ACOC TO FCOC LEAKING BEYOND LIMITS.  REMOVED LEAKING OIL LINE FROM ACOC TO FCOC.  REPLACED OIL LINE.  RAN ENGINE AND LEAK CHECKED. NO LEAKS NOTED. SERVICED ENGINE OIL TO FULL.

---
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.