Turbine Aircraft Services is taking its pilots’ review of proficiency (PROP) seminar series to Europe. The Houston-based company supports the Mitsubishi MU-2 twin turboprops under contract to the Japanese manufacturing giant and has been conducting the highly respected free seminars biennially in the U.S. for the past several years. The one-day seminars will be presented on May 24 in Frankfurt, Germany, and on May 27 in Nykoping, Sweden. As many as 70 pilots operate MU-2s in Europe, according to Mitsubishi Heavy Industries America.