# SDR R29R20110228001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2011
- Submitted: February 28, 2011
- Operation: General aviation
- Filed by: [Vertex Aerospace LLC, repair station R29R029O](https://openairdocs.org/faa-repair-station/R29R029O/vertex-aerospace-llc.md) (OpenAirDocs)
- Make and model: Bell 412EP
- Registry model: [Bell 412EP](https://openairdocs.org/model/bell-textron-canada-412ep) (OpenAirDocs)
- System (JASC): [6230 · Main Rotor Mast/Swashplate](https://openairdocs.org/jasc/6230)
- Part: Drive Link
- Part number: 412010405111
- Part serial: A4547
- Condition: Misrepaired
- Location: Main Rotor
- Part time: 340 hours, 671 cycles
- 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/R29R20110228001

## Discrepancy

BEARING IMPROPERLY STAKED IN DRIVE LINK ASSEMBLY. MAXIMUM GAP BETWEEN BEARING RACE AND LINK LUG IS .005". GAP MEASURED .015" WHEN RECIEVED FROM ABLE ENGINEERING & COMPONENT SERVICES IN PHEONIX, AZ. THIS IS THE SECOND DRIVE LINK FROM ABLE THAT HAS BEEN IMPROPERLY STAKED.

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