# SDR UPS08653442

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2008
- Submitted: October 7, 2008
- Operation: Air carrier
- Aircraft: [N304UP](https://openairdocs.org/aircraft/N304UP), registered now
- Make and model: Boeing 767-34AF
- Registry model: [Boeing 767-34AF](https://openairdocs.org/model/boeing-767-34af) (OpenAirDocs)
- Aircraft serial: 27242
- System (JASC): [2761 · Drag Control Actuator](https://openairdocs.org/jasc/2761)
- Part: O-Ring
- Condition: Broken
- Location: Spoiler Actuator
- Stage of operation: DE
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS08653442

## Discrepancy

INSPECTION TYPE:N/A LOSS OF CENTER HYD QTY & CENTER HYD PRESSURE.  CREW DECLARED EMERGENCY.  NOSE WHEEL STEERING WAS AVAILABLE AND TAXIIED TO GATE UNASSISTED.  VERIFIED HYD LEAK AT NR 9 SPOILER ACT HOUSING CAP.  FOUND O-RING UNDER CAP FLAT AND BROKEN, REF IPC 27-61-02 FIG 51.  REPLACED O-RING.  LEAK CHECK OK OF SPOILER.  SERVICED CENTER HYD SYSTEM TO FULL.  ON ARRIVAL A/C HYD WAS AT 20 PERCENT.

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