EASA AD 2019-0185
Rotors Flight Control — Main Rotor / Swashplate Guide Bellcrank Bushing — Replacement
Summary
EASA Airworthiness Directive 2019-0185 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Hélicoptères Guimbal Cabri G2 helicopters. It addresses the replacement of metal bushings installed on the main rotor swashplate guide bellcrank with plastic bushings to prevent potential structural failure. This directive applies to all serial numbers of the Cabri G2 helicopter.
What Changed
This new airworthiness directive introduces a mandatory replacement of metal bushings on the main rotor swashplate guide bellcrank with plastic bushings, as specified in Hélicoptères Guimbal Service Bulletin 17-003 issue C. It requires operators to modify affected helicopters within a specified compliance time and prohibits installation of metal bushings on any helicopter after the modification or from the effective date for unaffected helicopters.
Why It Matters
This directive is critical for aviation professionals because the presence of metal bushings can cause corrosion and cracking in the main rotor components, potentially leading to failure and reduced helicopter control. Compliance ensures continued airworthiness and safety of the Cabri G2 fleet, protecting operators from unsafe conditions and regulatory penalties. Maintenance and compliance teams must prioritize this replacement to avoid operational disruptions.
What To Do
Operators of Hélicoptères Guimbal Cabri G2 helicopters must replace all metal bushings on the main rotor swashplate guide bellcrank with plastic bushings within 50 flight hours or 2 months from 2019-08-13, whichever occurs first. Installation of metal bushings is prohibited after modification or from the effective date for unaffected helicopters. Compliance can be achieved by following the instructions in Hélicoptères Guimbal Service Bulletin 17-003 issue C or earlier acceptable revisions.
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