# SDR CA020507023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2002
- Submitted: May 31, 2002
- Operation: Air carrier
- Make and model: Bolkms BO105CBS
- Engine: Allsn 250C20B
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Bearing
- Part number: 4619303081
- Condition: Spalled
- Location: M/R Gearbox
- Component: Gearbox, 4638001001
- 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/CA020507023

## Discrepancy

(CAN) REMOVED FOR METAL CONTAMINATION. DISASSEMBLED OUTER RACE OF BEARING AND IT SHOWS SIGNS OF EXCESSIVE PEELING 14.5 MM BY 78 MM,AREA 1131 SQ MM.

---
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.