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All Guimbal Cabri G2 helicopters.
The purpose of this Continuing Airworthiness Notice (CAN) is to advise operators and maintainers of Guimbal Cabri G2 helicopters of a possible safety issue with the main rotor pitch link assemblies.
The CAA recently received a report from a New Zealand operator of a Guimbal Cabri G2 of finding cracks in all three main rotor pitch link assemblies (IPC Ref 4.1-02 #24 P/N G41-01-100).
The cracks were found in the swaged end of each pitch link, running lengthwise to the rod. Refer to the photo below for further details.
The CAA is in discussion with the manufacturer to further understand the likely cause of the cracks and to identify any necessary corrective actions.
The CAA recommends that aircraft operators pay extra attention to the lower (swaged) end of the pitch link assemblies for any indication of corrosion, paint cracking, or surface anomalies when carrying out pre-flight inspections.
If any indications of cracks are identified, then a maintenance engineer should inspect the pitch link assemblies. If engineers identify any crack-like indications after referral, or during scheduled maintenance, they should further inspect the rods to determine if a crack is present.
If any cracking is confirmed please send details to CAA using Form CAA005D.
This CAN may be revised as additional information becomes available.