Manufacturers Products Liability Manufacturers product liability is a necessity for any company that provides any type of product that can be used on an aircraft. Whether or not you actually produce a completed component of an aircraft or if you only manufacture the pop rivets that hold a plastic piece of fairing onto the wingtip, manufacturers product liability is a necessary coverage. Aviation product liability category of available insurance is so broad it would not be practicle to list the types of businesses that should have a manufacturers product liability policy. Please contact N.A.I.A. for further details regarding your individual products exposure.