# SDR CA050609019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2005
- Submitted: July 11, 2005
- Operation: General aviation
- Make and model: Bell 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (OpenAirDocs)
- Aircraft time: 19,710 hours
- Engine: Allsn 250C20
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Hanger Assy
- Part number: 206040323003
- Condition: Damaged
- Location: T/R Driveshaft
- 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/CA050609019

## Discrepancy

(CAN) UNUSUAL NOISE HEARD ON SHUTDOWN.  NR 1 T/R DRIVESHAFT HANGER SUPPORT 206-030-433-007 FOUND TO HAVE ELONGATED HOLES FOR HANGER ASSY ATTACH SCREWS 206-040-323-003. THESE SCREWS WERE WORN .333 THROUGH.  NEW HANGER MOUNT, HANGER ASSY, BEARING COLLAR, DRIVESHAFT SEGMENT AND RELATED HARDWARE INSTALLED.  A/C GROUND RUN - NO VIBRATION NOTED. NO ROUGHNESS NOTED IN THE REMOVED BEARING.

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