# SDR UALA2010090903335

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2010
- Submitted: September 15, 2010
- Operation: Air carrier
- Aircraft: [N655UA](https://openairdocs.org/aircraft/N655UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25393
- Aircraft time: 76,010 hours, 12,330 cycles
- Engine: Pwa PW4060
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Leaking
- Location: Hyd System
- 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/UALA2010090903335

## Discrepancy

HYDRAULIC FLUID LEAKING FROM LT STABILIZER AREA RUNNING DOWN BELLY OF AIRCRAFT.  LEAK APPEARS TO BE FROM A RUDDER AUTOPILOT SERVO. FOUND LEFT RUDDER RATIO CHANGER LEAKING AT SUPPLY AND RETURN B-NUTS. CHANGED OUT BOTH O RINGS NO LEAKS NOTED DURING OPS CHECK.

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