# SDR ALGA100793

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2005
- Submitted: May 23, 2005
- Operation: Air carrier
- Aircraft: N5NBCZ
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 33179
- Aircraft time: 5,571 hours
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Drive Gear
- Part number: 205040245001
- Part serial: 38443
- Condition: Failed
- Location: Transmission
- Component: Transmission
- Component part number: 412040002113
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ALGA100793

## Discrepancy

TRANSMISSION DISASSEMBLED FOR METAL, FOUND DUPLEX BEARING BREAKING DOWN. REMOVED AND REPLACED DUPLEX BEARING P/N 205-040-245-001.

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