# SDR HEEA078121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2002
- Submitted: March 18, 2002
- Operation: General aviation
- Aircraft: [N402PH](https://openairdocs.org/aircraft/N402PH), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53159
- Aircraft time: 1,481 hours
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Flywheel
- Part number: 407040316101
- Part serial: NA
- Condition: Worn
- Location: Tail Rotor
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA078121

## Discrepancy

TAIL ROTOR FLYWHEEL HAS WORN SPLINES.

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