# SDR 2004FA0000149

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2004
- Submitted: February 4, 2004
- Operation: General aviation
- Aircraft: N1312J
- Make and model: Cessna 310
- Registry model: [Cessna 310](https://openairdocs.org/model/cessna-310) (OpenAirDocs)
- Propeller: Mcauly D2AF34C52
- System (JASC): [6110 · Propeller Assembly](https://openairdocs.org/jasc/6110)
- Part: Counterweight
- Part number: D4170
- Part serial: C408
- Condition: Cracked
- Location: Propeller
- Component: Propeller
- Component part number: D2AF32C52
- Stage of operation: NR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004FA0000149

## Discrepancy

PART HAD APPROX 700.00 HOURS SINCE OVERHAUL, FATIGUE CRACK APPEARS TO HAVE  ORIGINATED AT FORWARD BOLT HOLE.  PROPELLER/ENGINE BEGAN VIBRATING IN FLIGHT DUE TO COUNTER WEIGHT SHIFTING ON FERRULE.  AIRCRAFT REDUCED POWER, LANDED AND WAS REPAIRED BEFORE FURTHER FLIGHT.  (K)

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