# SDR ALGA2012011621712

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2012
- Submitted: January 17, 2012
- Operation: Air carrier
- Aircraft: N9YONE
- Make and model: Bell 412EP
- Registry model: [Bell 412EP](https://openairdocs.org/model/bell-textron-canada-412ep) (OpenAirDocs)
- Aircraft serial: 36421
- Aircraft time: 5,034 hours
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Liner
- Part number: 412040102103
- Condition: Corroded
- Location: Zone 200
- Component: Mast Assy, Bell
- Component part number: 412040366113
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ALGA2012011621712

## Discrepancy

LINER HAS PITTING CORROSION BEYOND REPAIRABLE LIMITS.

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