# SDR 99ZZZX2795

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Propeller: Hartzl HCC2YR4
- System (JASC): [6114 · Propeller Hub Section](https://openairdocs.org/jasc/6114)
- Part: Bolt
- Part number: A2432
- Condition: Failed
- Location: Hub
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX2795

## Discrepancy

PROPELLER CORNER BOLT FAILED IN THREAD AREA.  THIS BOLT WAS A SPINNER BULKHEAD ATTACHMENT BOLT.  THE OWNER COMMENTED THAT THE SPINNER HAD CRACKED, THEN WELDED AND CRACKED AGAIN AND RE-WELDED.  THE SPINNER WAS CRACKED WHEN RECEIVED FOR REPAIR.  THE OWNER ALSO COMMENTED THE AIRCRAFT GOES THROUGH A PERIOD OF SEVERE VIBRATION DURING ROLLOUT.  THE MAIN GEAR IS HARD MOUNTED DIRECTLY TO THE ENGINE MOUNT.

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