Report: Human Error, Airline Negligence Led to ATR Crash

Errors by the pilot and the airline's negligence are to blame for a plane crash in a mountainous region of central Iran that killed 66 people last month, according to aviation authorities.  
A preliminary report by the Civil Aviation Organization was published on Sunday, shedding some light on the February 18 crash of an ATR-72 twin-engine passenger turboprop operated by Aseman Airlines. 
The aircraft, which was flying to the southwestern city of Yasuj, dropped off the radar after taking off from Tehran as a snowstorm battered the Zagros Mountains.