MORE Company Inc. provides FAA approved supplemental type certificates (STCs) for certain models of PT6A engines to extend the engine TBO to 8,000 hours. The MORE STC uses an enhanced maintenance method to find and correct problems in their early stages. The STCs were designed to extend engine life, reliability, safety, and to reduce the cost of operation and ownership. The STCs are fully transferrable, there is no fixed hourly hot section interval, and can be used by private and commercial aircraft.
