# SDR CA100621003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 18, 2010
- Submitted: January 4, 2011
- Operation: General aviation
- Make and model: Bell 206L-1
- Registry model: [Bell 206L-1](https://openairdocs.org/model/bell-helicopter-textron-206l-1) (OpenAirDocs)
- Aircraft time: 14,412 hours
- Engine: Allsn 250C28B
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Drive Shaft
- Part number: 206040325017
- Condition: Bent
- Location: Tail Rotor
- Part time: 14,430 hours
- Stage of operation: TX
- How discovered: V
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA100621003

## Discrepancy

DURING GROUND RUNS, A NOISE AND VIBRATION FELT IN THE AFT BAGGAGE COMPARTMENT, INVESTIGATION FOUND THE SHORT STEEL SHAFT TO BE BENT .007" AT THE AFT COUPLING END, A REPLACEMENT SHAFT INSTALLED AND VIBRATION ELIMINATED.  CAUSE OF SHAFT OUT OF TOLERENCE UNKNOWN.

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