# SDR UALA2010033101088

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2010
- Submitted: April 7, 2010
- Operation: Air carrier
- Aircraft: [N226UA](https://openairdocs.org/aircraft/N226UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30226
- Aircraft time: 33,730 hours, 4,138 cycles
- Engine: Pwa PW40903
- Engine time: 23,533 hours, 29,286 cycles
- System (JASC): [7920 · Engine Oil Distribution (Airframe Furnished)](https://openairdocs.org/jasc/7920)
- Part: O-Ring
- Condition: Damaged
- Location: Oil System
- Stage of operation: IN
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010033101088

## Discrepancy

OIL LEAK ON NR 1 ENGINE LT SIDE AT AFT SIDE OF FUEL OIL COOLER.  FOUND NR 2 BEARING LAST CHANCE FILTER HOUSING LEAKING AT PARTING SURFACE.  REPLACED 'O' RING FOR FILTER.  LEAK CHECK OF

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