Frankfurt/Schwechat – The flight attendants of AUA parent company Lufthansa have been called on a strike this Friday. The strike is planned from 12:01 a.m. to 10:00 p.m., as the German union UFO announced. “All Deutsche Lufthansa AG departures from Frankfurt and Munich airports will be on strike,” it said. These are Lufthansa’s hubs, and numerous passengers are threatened with flight cancellations.