I'm a partner in paper with writing While it’s tempting to suspect “crew fatigue;” that topic is a major aviation industry political hot potato; just in the U.S. Typically, the FAA would call God a liar, if He said it was crew fatigue. 必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])