# SDR 99ZZZX3083

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N407FC](https://openairdocs.org/aircraft/N407FC), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53050
- System (JASC): [6300 · Main Rotor Drive System](https://openairdocs.org/jasc/6300)
- Part: Carbon Seal
- Part number: 406340102101
- Condition: Leaking
- Location: Freewheel Unit
- Part time: 1,300 hours
- 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/99ZZZX3083

## Discrepancy

CARBON SEAL LEAKING.  REPLACED WITH NEW SEAL FROM BELL HELICOPTER.

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