# SDR SWAA000409

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2000
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N63SW](https://openairdocs.org/aircraft/N63SW), registered now
- Make and model: Boeing 737-2H4
- Registry model: [Boeing 737-2H4](https://openairdocs.org/model/boeing-737-2h4) (OpenAirDocs)
- Aircraft serial: 22061
- System (JASC): [2916 · Hydraulic Reservoir, Main](https://openairdocs.org/jasc/2916)
- Part: Relief Valve
- Part number: 316565
- Condition: Failed
- Location: Hyd System
- Stage of operation: CL
- Nature of condition: B, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA000409

## Discrepancy

AIR TURNBACK, HYD FUMES IN COCKPIT AND CABIN.  REMOVED AND REPLACED A-SYSTEM RESERVOIR AIR PRESS REGULATOR AIR SUPPLY FILTER.  REMOVED AND REPLACED RESERVOIR RELIEF VALVE.  REMOVED AND REPLACED WATER SEPARATOR SOCKS ON BOTH SIDES.  OPERATED SYSTEM PER MM.  NO FUMES NOTED.

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