# SDR 2006FA0000633

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2005
- Submitted: June 29, 2006
- Operation: General aviation
- Aircraft: [N331FC](https://openairdocs.org/aircraft/N331FC), 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: 277554024
- Engine: Lyc IO540C4B5
- System (JASC): [7310 · Engine Fuel Distribution](https://openairdocs.org/jasc/7310)
- Part: Line
- Part number: LW120980170
- Condition: Broken
- Location: Fuel Injector
- Part time: 980 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2006FA0000633

## Discrepancy

THIS PART BROKE ON THE WELDED AREA NEXT TO B-NUT.  ALL CLAMPS WERE PROPERLY LOCATED AND TIGHT.  THIS FAILURE COULD HAVE BEEN FROM FATIGUE CAUSED BY OVERTORQUING B-NUT TO FUEL NOZZLE.  SUGGEST PAYING ATTENTION TO PROPER TORQUE VALVES.  (K)

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