# SDR 2004FA0000790

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2004
- Submitted: October 6, 2004
- Operation: General aviation
- Aircraft: [N54MV](https://openairdocs.org/aircraft/N54MV), registered now
- Make and model: Piper PA-23-250
- Registry model: [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250) (OpenAirDocs)
- Aircraft serial: 277654043
- Engine: Lyc TIO540C1A
- System (JASC): [7314 · Engine Fuel Pump](https://openairdocs.org/jasc/7314)
- Part: Pump
- Part number: RG17980JM
- Part serial: C5555
- Condition: Failed
- Location: Engine
- Part time: 20 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004FA0000790

## Discrepancy

FUEL LEAKING INTO MANIFOLD REFERENCE LINE.  PILOT EXPERIENCED INFLIGHT ROUGH ENGINE WHEN AUXILIARY FUEL PUMP TURNED ON.  FUEL CONTINUED TO RUN ON GROUND AFTER ENGINE SHUTDOWN.  PROBABLE CAUSE: MFG DEFECT: LEAKING DIAPHRAGM.

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