Summary
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS355NP helicopters. This proposed AD was prompted by a report of mechanical deformation found on the protective cover (also referred to as switch guard) of the ''SHEAR'' control pushbutton installed on a co-pilot collective stick of a Model EC225LP helicopter, caused by incorrect handling; due to having an identical design switch guard installed on the pilot collective stick, Model AS355NP helicopters are also affected. This proposed AD would require replacement of the protective cover of the ''SHEAR'' control pushbutton, and re-identification of the pilot collective stick, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.