# SDR HAIHEEA9251

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N427PH](https://openairdocs.org/aircraft/N427PH), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53059
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Disk Coupling
- Part number: 406040340101
- Condition: Cracked
- Location: T/R Drive
- Part time: 186 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/HAIHEEA9251

## Discrepancy

ON DAILY INSPECTION, FOUND ONE DISK CRACKED ON THE AFT END OF THE #5 TAIL ROTOR DRIVESHAFT.  CRACKED DISK WAS ON THE AFT OUTBOUND SIDE OF THE DISK PACK ASSEMBLY.

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