# SDR WD42001F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 2001
- Submitted: November 1, 2001
- Operation: Air carrier
- Aircraft: [N638B](https://openairdocs.org/aircraft/N638B), registered now
- Make and model: Beech A200
- Registry model: [Beech A200](https://openairdocs.org/model/beech-a200) (OpenAirDocs)
- Aircraft serial: BC65
- Engine: Pwa PT6A41
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Valve
- Part number: 10192006137
- Condition: Mismanufactured
- Location: Fuel Filler
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WD42001F00000

## Discrepancy

NEW REPLACEMENT PARTS FOR THE ANTI-SIPHON VALVE ASSEMBLY ARE BEING MFG INCORRECTLY.  PROBLEM IS THE FLAPPER ASSEMBLY GASKET AND BACKUP PLATE WERE TRIMMED INCORRECTLY AND HINGE IS EXPOSED LEAVING A GAP WHERE FUEL CAN BE SIPHONED OUT DURING FLIGHT IF THE FUEL CAP WERE TO COME OFF IN FLIGHT.  MFG HAS BEEN NOTIFIED OF PROBLEM.

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