Airworthiness Directives; Viking Air Limited Airplanes

We are adopting a new airworthiness directive (AD) for Viking Air Limited Model DHC-3 airplanes that are modified with the Baron Short Take Off and Landing (STOL) kit (Supplemental Type Certificate SA94-114 or SA 00287NY). This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as a center of gravity that is too far aft contributing to a stall during takeoff and loss of control during other phases of flight. We are issuing this AD to require actions to address the unsafe condition on these products.