# SDR 97ZZZX4932

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N437AL](https://openairdocs.org/aircraft/N437AL), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53141
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Disc Pack
- Part number: 406040340101
- Condition: Cracked
- Location: T/R Drive Shaft
- Part time: 58 hours
- Component: 407040302101
- 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/97ZZZX4932

## Discrepancy

DAILY VISUAL INSPECTION OF TAILBOOM IAW NOTAM NR 51A-97, NR 5 TO NR 6 DISC PACK (T/R D/S) ASSEMBLY.  ONLY ONE DISC FOUND CRACKED IN THE NR 10 POSITION OUT OF 10 DISCS.  57.8 HOURS TOTAL TIME ON DISC PACK FROM LAST CRACKED DISC.

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