# SDR HEEA0014991

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 1998
- Submitted: March 26, 2000
- 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
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Coupling
- Part number: 406040340101
- Condition: Mismanufactured
- Location: T/R Drive
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA0014991

## Discrepancy

PER AD 97-24-17 (PART A), TAIL ROTOR DRIVE BOLT TORQUE BELOW MINIMUM.

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