United Airlines finds loose bolts on Boeing 737 jet doors CNN 0 159 01.09 10:37 https://www.youtube.com/watch?v=CkDZ88Q7scg + 43 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 16 United Airlines finds loose bolts on Boeing 737 jet doors