Occurred on April 3, 2021 Kansas Citybr br Info from Licensor: "We saw these two Southwest pilots open the cockpit windows and balance precariously 25 feet above the concrete while cleaning the plane windshield with what looked like cocktail napkins. First, who knew those windows even opened? Second, is there not a bettersafer system for cleaning the windshield of a 737? My Ford does this at the push of a button. Just thought it was funny to see two highly qualified pilots doing menial labor.