وصف: Operation of Airplane on Unleaded or Leaded Automotive Gasoline
Piper (PA-18, PA-18S, PA-18 "105", PA-18S "105", PA-18A, PA-18 "150", PA-18A "150", PA18S "150", PA18AS"150", PA-18S "135", PA-18AS "135", PA-18 "125", PA-18S "125", PA-18AS "125", PA18 "135", PA-18A "135", PA-19, PA-19S, PA-18A, PA18A-135, PA18A-150 (restricted category))