# SDR 99ZZZX1474

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Nampa Valley Helicopters Inc, repair station FF6R533N](https://openairdocs.org/faa-repair-station/FF6R533N/nampa-valley-helicopters-inc.md) (OpenAirDocs)
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: Roller
- Part number: 3130S6010004
- Condition: Corroded
- Location: Freewheel Unit
- 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/99ZZZX1474

## Discrepancy

ROLLERS HAVE CORROSION AND MICROPITTING. REF: R.O. 18896.

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