# SDR ALGA201203121206

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2012
- Submitted: March 13, 2012
- Operation: Air carrier
- Aircraft: [N189AL](https://openairdocs.org/aircraft/N189AL), registered now
- Make and model: Bell 206L-4
- Registry model: [Bell 206L-4](https://openairdocs.org/model/bell-helicopter-textron-canada-206l-4) (OpenAirDocs)
- Aircraft serial: 52340
- Aircraft time: 6,521 hours
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: Adapter
- Part number: 406040542107
- Part serial: A1855
- Condition: Corroded
- Location: Free Wheel Unit
- Component: Free Wheel Unit, Bell
- Component part number: 406040500143FM
- 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/ALGA201203121206

## Discrepancy

FREE WHEEL UNIT ADAPTER HAS PITTING CORROSION BEYOND LIMITS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
