# SDR CA140714004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2014
- Submitted: March 12, 2015
- Operation: General aviation
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Engine: Allsn 250C47B
- System (JASC): [6230 · Main Rotor Mast/Swashplate](https://openairdocs.org/jasc/6230)
- Part: Journal
- Condition: Spalled
- Location: Mast
- Component: Mast Assy, Bell
- Component part number: 407040038111
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA140714004

## Discrepancy

(CAN) AFTER REMOVAL OF MAST ASSY, TECH DISCOVERED SPALLING AT THE LOWER MAST JOURNAL AREA.  MAST WILL BE SENT TO MFG FOR FURTHER INVESTIGATION.

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