# SDR CA020814004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2002
- Submitted: August 16, 2002
- Operation: Air carrier
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft time: 2,053 hours
- Engine: Allsn 250C47B
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Case
- Part number: 407040050101
- Condition: Mismanufactured
- Location: M/R Gearbox
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA020814004

## Discrepancy

(CAN)  MAIN ROTOR GEARBOX HAS A CASTING FLAW IN CASE.

---
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.