Posted in AVIATION NEWS, ROTAX SERVICE INSTRUCTIONS, SERVICE BULLETIN, TECH TIPS Rotax TECH TIPS SB Replacement of oil filter William 2017-11-06 Author: William Related Articles Midwest LSA Expo RS AEROTECH and SEAREY join for high tech testing … AERO 2014: A Strong Showing for General Aviation in Friedrichshafen RFSC, Ltd. issues it 2nd STAFF INSTRUCTOR rating.