# SDR 96ZZZX4644

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N5759M
- Make and model: Bell 206L-1
- Registry model: [Bell 206L-1](https://openairdocs.org/model/bell-helicopter-textron-206l-1) (OpenAirDocs)
- Aircraft serial: 45555
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Bearing
- Part number: 206040032011
- Condition: Failed
- Location: M/R Xmsn
- Part time: 12,948 hours
- Component: 206040004111
- 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/96ZZZX4644

## Discrepancy

LOWER DUPLEX BEARING BAD.  CONTAMINATED TRANSMISSION, DAMAGING OIL PUMP, AND GEARSHAFT ROLLER BEARING.  TRANSMISSION COMPLETELY TORN DOWN, INSPECTED, CLEANED, AND REASSEMBLED.  TSO:   702.5 HOURS TOTAL TIME OF DEFECTIVE DUPLEX BEARING.  702.5 HOURS AND 9 MONTHS SINCE NEW.

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