# SDR UALA2012071103724

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2012
- Submitted: August 14, 2012
- Operation: Air carrier
- Aircraft: [N777UA](https://openairdocs.org/aircraft/N777UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26916
- Aircraft time: 69,637 hours, 12,589 cycles
- Engine: Pwa PW4077
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Pressure Switch
- Condition: Failed
- Location: Engine Oil
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012071103724

## Discrepancy

ENGINE OIL FILTER SENSOR PRESSURE SWITCH FOR DETECTING IMPENDING OIL FILTER BYPASS ON THE RIGHT ENGINE HAS FAILED.

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