# SDR 97ZZZX4432

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N206SL](https://openairdocs.org/aircraft/N206SL), registered now
- Make and model: Bell 206L-1
- Registry model: [Bell 206L-1](https://openairdocs.org/model/bell-helicopter-textron-206l-1) (OpenAirDocs)
- Aircraft serial: 45245
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: Coupling
- Part number: 2060401173
- Condition: Worn
- Location: Input Drive
- Component: 206040015015
- 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/97ZZZX4432

## Discrepancy

IN-FLIGHT AND GROUND RUN, FOUND INTERMITTENT HIGH PITCHED WHINE IN CABIN.  INNER COUPLING FOUND TO HAVE UNACCEPTABLE WEAR PATTERN.  OUTER COUPLING WAS SERVICEABLE; NEITHER COUPLING WAS WORN BEYOND DIMENSIONAL LIMITS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.