# SDR QMLA2012121512191

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2012
- Submitted: December 17, 2012
- Operation: Air carrier
- Aircraft: N625CF
- Make and model: Urocop AS365N3
- Registry model: [Urocop AS365N3](https://openairdocs.org/model/eurocopter-as365n3) (OpenAirDocs)
- Aircraft serial: 6596
- Aircraft time: 2,282 hours, 8,000 cycles
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Link
- Condition: Failed
- Location: Main Rotor Head
- Stage of operation: AA
- How discovered: O
- Nature of condition: E, F
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QMLA2012121512191

## Discrepancy

AIRCRAFT BEGAN TO EXPEREINCE A 1 TO 1 VERTICAL VIBRATION AND I FELT FEEDBACK IN THE CYCLIC.  DECLARED AN EMERGENCY, AND EXECUTED A ROLL ON LANDING WITHOUT INCIDENT.   MX INSPECTED THE ACFT AND DISCOVERED THAT THE LOWER BEARING ON THE BLACK PITCH CHANGE LINK HAD FAILED AND CAME UNSTAKED FROM THE ROD END.

---
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.