article_snippet: Die Welt had been declared "unfit to work" by a doctor.
article_snippet: They were expected to question Die Welt relatives, friends and co-workers as his relatives, friends and co-workers try to pin down what could have prompted the seemingly competent and stable co-pilot to steer a jetliner into a mountainside on Tuesday.
article_snippet: the official would have been required to self-report if the official had been deemed unfit to fly.
article_snippet: Pilots are required to maintain Pilots fitness to fly and must tell Pilots airline if Pilots're found unfit, CNN's French affiliate BFMTV said.