Penn Yan Aeronautical Service

Penn Yan Aero was established in 1945 by Harold Middlebrook. Since then, the company has been continuously owned and managed by the Middlebrook Family. The Middlebrooks are active aircraft owners, pilots, and mechanics. They have focused their attention and resources on Lycoming and Continental aircraft engines; no removals or installations, just engines.

The Middlebrooks have attracted talented, like-minded professionals who have joined Penn Yan Aero and have helped hone its practices and capabilities to unmatched levels. The experienced, long-term workforce is empowered with the best tools and technology, allowing them to focus on delivering the best engines in the world. The result is smooth-running, long-lasting Penn Yan Aero overhauled Lycoming and Continental aircraft engines, backed by unparalleled service and the best warranty in the business.