# SDR AALA20041261

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2004
- Submitted: December 31, 2004
- Operation: Air carrier
- Aircraft: N378AN
- Make and model: Boeing 767323
- Aircraft serial: 25447
- System (JASC): [2931 · Hydraulic Pressure Indicator](https://openairdocs.org/jasc/2931)
- Part: O-Ring
- Condition: Blown
- Location: Hyd Indicator
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20041261

## Discrepancy

LAS - EN ROUTE LAX-ORD RIGHT HAND HYDRAULIC SYSTEM QUANTITY LOSS.  CONFIRMED CONTINUING LOSS OF FLUID FROM .48 TO .11 INDICATED.  LANDED LAS WITHOUT INCIDENT.  REPLACED BLOWN OUT O-RING ON THE HYDRAULIC DIFFERENTIAL PRESSURE INDICATOR LOCATED ON THE RIGHT ENGINE HYDRAULIC SYSTEM MODULE.  SERVICED HYDRAULICS.  SYSTEM GROUND CHECKED NORMAL OPERATION.

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