# SDR EVCA1821

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2010
- Submitted: April 15, 2010
- Operation: Air carrier
- Aircraft: [N1821](https://openairdocs.org/aircraft/N1821), 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: 52366
- Aircraft time: 516 hours, 1,761 cycles
- Engine: Allsn 250C30P
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: Bearing
- Part number: 406340103103
- Condition: Flaking
- Location: Transmission
- Part time: 516 hours, 1,761 cycles
- Component: Transmission, Bell
- Component part number: 206040004115
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EVCA1821

## Discrepancy

INTERMITTENT TRANSMISSION CHIP LIGHT IN FLIGHT, DISASSEMBLED TRANSMISSION AND FOUND SEVERAL PLANETARY ROLLER BEARINGS FLAKING AND PITTING.

---
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.