EASA AD CF-2016-11R3
Flight Controls - Corrosion of Bellcrank Pivot Bearings
Canadian Airworthiness Directive CF-2016-11R3 addresses corrosion issues in the bellcrank pivot bearings of Bell Textron Canada Limited model 429 helicopters. The directive mandates inspections and replacement of affected collective and cyclic bellcrank assemblies to prevent flight control restrictions caused by corrosion. It applies to all serial numbers of Bell 429 helicopters and requires compliance with Bell Alert Service Bulletin 429-15-21 Revision C or later.