# SDR UALA2010111004170

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 2010
- Submitted: November 17, 2010
- Operation: Air carrier
- Aircraft: [N677UA](https://openairdocs.org/aircraft/N677UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30029
- Aircraft time: 33,456 hours, 8,451 cycles
- Engine: Pwa PW4056
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Leaking
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010111004170

## Discrepancy

CTR HYD LEAK, FLIGHT DIVERTED. CENTER HYD QTY DROPPING TO .49. REFILL EICAS CENTER HYD SYS TURNED OFF. LEAKING O-RING ON RT CENTER HYDRAULIC ACCMP WAS CHANGED.

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