FAA issues STC for Unleaded Avgas - Australian Flying
Search G100UL fuel is suitable for use with some O-360 engines, such as those fitted to some Piper Archers. (Steve Hitchen) Close× FAA issues STC for Unleaded Avgas 29 July 2021 The US Federal Aviation Authority (FAA) this week issued a supplemental type certificate (STC) for a 100-octane avgas that contains no lead additive. Developed by Oklahoma-based General Aviation Modifications Inc. (GAMI), the STC for G100UL is valid for certain Lycoming O-320, O-360 and IO-360 piston engines, and has been roundly applauded by the US GA community. “This STC is a positive step as we seek a fleet-w...