Pilots are exhausted. A new survey suggests 3 out of 4 European pilots dozed off over the course of a month while flying a plane.

• Pilots say they're so exhausted they're struggling to stay awake while operating flights.
• Around 75% in a survey of European pilots said they'd taken a "microsleep" in recent weeks.
• Pilots said their airlines didn't manage fatigue risk well and it was difficult to file fatigue reports.

Some European pilots are suffering from exhaustion and taking "microsleeps" while operating aircraft to cope, a new survey reveals.