Garmin GI 275 certified for Robinson helicopters By General Aviation News Staff · July 13, 2022 · The FAA awarded an STC for R22 and R44 installations in early July 2022.
Alpha Aviation earns STC for O-200A on Ercoupes C, CD, D, E, and G models By General Aviation News Staff · February 3, 2020 · The STC allows the engine change without the loss of LSA eligibility.