# SDR V0DR967Y001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2010
- Submitted: August 11, 2010
- Operation: General aviation
- Make and model: Beech 1900D
- Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (OpenAirDocs)
- Propeller: Hartzl HCE4A3I
- System (JASC): [6100 · Propeller System](https://openairdocs.org/jasc/6100)
- Part: Jam-Nut
- Part number: B3368
- Condition: Defective
- Location: Propeller
- Component: Propeller, Hartzl
- Component part number: HCE4A3I
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/V0DR967Y001

## Discrepancy

DURING ASSY OF A PROPELLER, THE JAM-NUTS, PN B-3368 WERE INSTALLED AND THE BETA RING RUN-OUT TOLERANCE COULD NOT BE MAINTAINED.  FURTHER TROUBLESHOOTING IDENTIFIED THAT THE NUT PN B-3368 WAS MFG WITH THE THREADS NOT TRUE.  CAUSING THE RUN-OUT TO BECOME EXCESSIVE WHEN THE NUT WAS TIGHTENED.

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