William Stuart Keller - Commercial Pilot, Flight Instructor

William Keller is an FAA-certified pilot and flight instructor based in Orlando, FL. William Stuart Keller holds a Commercial Pilot certificate with Airplane Single-Engine Land (ASEL), Rotorcraft Helicopter, and Instrument (type unspecified) ratings. A Commercial Pilot certificate authorizes the holder to fly aircraft for compensation or hire, including charter flights, aerial photography, banner towing, cargo operations, and other commercial aviation activities. Commercial certification requires a minimum of 250 hours of flight time. William holds a Certified Flight Instructor (CFI) certificate with Rotorcraft Helicopter rating. A Certified Flight Instructor certificate authorizes the holder to provide flight training to student and certificated pilots, including ground and flight instruction, solo endorsements, practical test endorsements, and biennial flight reviews. Their most recent FAA medical certificate is a Second Class medical, valid through September 2026. The FAA airman records for William Keller are tracked and verified by AviatorDB.