# SDR CWQ2002F00005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2002
- Submitted: September 11, 2002
- Operation: Air carrier
- Aircraft: [N792QS](https://openairdocs.org/aircraft/N792QS), registered now
- Make and model: Cessna 650
- Registry model: [Cessna 650](https://openairdocs.org/model/cessna-650) (OpenAirDocs)
- Aircraft serial: 6507092
- Engine: Garrtt TFE731*
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: O-Ring
- Part number: MS29513010
- Condition: Cracked
- Location: Fuel Sump Drain
- 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/CWQ2002F00005

## Discrepancy

DURING INSPECTION, NOTICED FUEL LEAKING ON FLOOR.  FOUND SUMP DRAIN VALVE LEAKING.  REMOVED AND REPLACED O-RING.  THIS IS A COMMON PROBLEM.  O-RING MATERIAL SEEMS TO HAVE RADIAL CRACKS AND LOOKS TO BE DRY ROTTED.  NEEDS FUEL RESISTANCE MATERIAL.

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