# SDR ALGA088162

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2003
- Submitted: July 28, 2003
- Operation: Air carrier
- Aircraft: [N507AL](https://openairdocs.org/aircraft/N507AL), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53103
- Aircraft time: 14,266 hours
- Engine: Allsn 250C30S
- Engine time: 9,343 hours
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Pinion Gear
- Part number: E6893672
- Part serial: DG13081
- Condition: Spalled
- Location: Gearbox
- Part time: 723 hours
- Component: Gearbox
- Component part number: 23035179
- 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/ALGA088162

## Discrepancy

HEAVY SPALLING ON GEAR TEETH,DUE TO IMPROPER MESHING OF GEAR TEETH.

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