The FAA is adopting a new airworthiness directive AD for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. This AD was prompted by a report of a missing pintle fuse pin in the left-hand LH main landing gear MLG discovered during scheduled maintenance. This AD requires doing an inspection of the MLG pintle housing assembly to verify that the pintle fuse pins are present and correctly installed and corrective actions if necessary as specified in a Transport Canada Emergency AD which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.