# SDR ALGA123010AFS1227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2010
- Submitted: December 30, 2010
- Operation: Air carrier
- Aircraft: [N697AL](https://openairdocs.org/aircraft/N697AL), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53374
- Aircraft time: 10,986 hours
- Engine: Allsn 250C47B
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Pinion Gear
- Part number: 406040095101
- Part serial: AFS12270
- Condition: Cracked
- Location: Transmission
- Component: Transmission, Bell
- Component part number: 407040006107FM1
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ALGA123010AFS1227

## Discrepancy

NUMEROUS CRACKS ON INNER SURFACE WHERE ROLLER SET RIDES.

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