# SDR HEEA078314

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2002
- Submitted: March 25, 2002
- Operation: General aviation
- Aircraft: [N457PH](https://openairdocs.org/aircraft/N457PH), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53147
- Aircraft time: 2,791 hours
- System (JASC): [6520 · Tail Rotor Gearbox](https://openairdocs.org/jasc/6520)
- Part: Gearbox
- Part number: 406040400117FM
- Part serial: A928
- Condition: Corroded
- Location: Tail Rotor
- Part time: 1,701 hours
- 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/HEEA078314

## Discrepancy

TAIL ROTOR GEARBOX SPLINES PITTED ON OUTPUT SHAFT.

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