# SDR HEEA083867

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2003
- Submitted: January 20, 2003
- Operation: Air carrier
- Aircraft: [N493PH](https://openairdocs.org/aircraft/N493PH), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53393
- Aircraft time: 3,856 hours
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: Freewheel Unit
- Part number: 406040500131
- Part serial: A5497
- Condition: Malfunctioned
- Location: Main Rotor
- Part time: 338 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA083867

## Discrepancy

FREEWHEEL UNIT CAUSING ENGINE VIBRATION FWD END AND ALSO FWD SEAL LEAKING. REPLACED FWU.

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