Airworthiness Directives; Koito Industries, Ltd., Seats and Seating Systems Approved Under Technical Standard Order (TSO) TSO-C39b, TSO-C39c, or TSO-C127a

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires determining if affected seats and seating systems and their components are compliant with certain FAA regulations, and removing those seats, seating systems, and their components that are shown to be unsafe from the affected fleet. This AD was prompted by a determination that the affected seats and seating systems may not meet certain flammability, static strength, and dynamic strength criteria. Failure to meet static and dynamic strength criteria could result in injuries to the flightcrew and passengers during emergency landing conditions. In the event of an in-flight or post- emergency landing fire, failure to meet flammability criteria could result in an accelerated fire. We are issuing this AD to prevent accelerated fires and injuries to the flightcrew and passengers.