An Islamic Republic of Iran Air Force (IRIAF) CH-47 Chinook helicopter conducted a crash/forced landing Wednesday near Karaj, situated 20 kilometres (12 mi) west of Tehran.
— Aerospacetalk (@Aerospacetalk) September 12, 2018
According to local reports, five crew members received minor injuries during the incident. No additional details are available at present and the it is not known whether the incident was an intentional emergency landing or a crash.
An image of the crash released in social media shows one of the main rotor of the helicopter completely destroyed. The rear fuselage of the aircraft also suffered major damage to an extent that it would mostly be written off.
CH-47 Chinook is a twin-engined, tandem rotor, heavy-lift helicopter developed by American rotorcraft company Vertol and currently manufactured by Boeing Vertol (later known as Boeing Rotorcraft Systems).
Chinooks were ordered by Iran for the Imperial Iranian Air Force (IIAF) and Imperial Iranian Army Aviation ( IIAA) before the Iranian revolution.
Despite the arms embargo in place upon Iran, the Iran Helicopter Support and Renewal Company (IHSRC) has completely overhauled, re-built and reverse-engineered some Iranian Chinooks and has managed to keep its Chinook fleet operational.
Currently 20 to 45 Chinooks are operational in Iran operated by its Army and Air Force.