The company has been an internal division of the manufacturer Iran Aircraft Manufacturing Industrial Company (HESA) and operated a fleet of 6 HESA-assembled Antonov An-140turboprop aircraft. Following the 10 August 2014 crash, the entire IrAn-140 fleet in Iran was grounded, pending the outcome of the investigation,[1] ultimately leading to the indefinite cessation of all Sepahan Airlines operations as it owned no other type of aircraft.
On 10 August 2014, a HESA IrAn-140 operating flight SPN 5915toTabas crashed near Tehran Mehrabad International Airport, killing at least 39 passengers.[3] The plane had taken off from the airport moments earlier at 9:45 hours local time (0515 UTC), before at least one of its engines failed.[4]