# SDR CA190308019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2019
- Submitted: August 14, 2020
- Operation: General aviation
- Make and model: Bell 212
- Registry model: [Bell 212](https://openairdocs.org/model/bell-212) (OpenAirDocs)
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Coupling
- Part number: 204040604005S
- Condition: Damaged
- Location: Tail Rotor
- Stage of operation: NR
- 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/CA190308019

## Discrepancy

(CAN) NEW TAIL ROTOR COUPLING FROM MANUFACTURER PART NUMBER 204040604005S   HAS SCORING MARKS IN VALLEY BETWEEN TEETH. MACHINE MARKS  THREE COUPLINGS WITH SAME DEFECT

---
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.