# SDR 9900441154

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N154US](https://openairdocs.org/aircraft/N154US), registered now
- Make and model: Doug DC-10-40
- Registry model: [Doug DC-10-40](https://openairdocs.org/model/douglas-dc-10-40) (OpenAirDocs)
- Aircraft serial: 46763
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Valve
- Part number: SB1027020811
- Condition: Leaking
- Location: Horiz Stab
- Part time: 37,727 hours
- Stage of operation: CR
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9900441154

## Discrepancy

HYDRAULIC QUANTITY DECREASED TO ZERO DURING FLIGHT.  FLIGHT DIVERTED TO PHX AND LANDED WITHOUT INCIDENT.  FOUND LOWER HORIZONTAL STABILIZER CONTROL VALVE LEAKING.  REPLACED CONTROL VALVE, LEAK AND OPERATIONAL CHECK OK.

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