The only Cessna in Iran in the first days of April 2001 was produced by the American company Cesna with serial number 0026 and registration N126CJ. On 5/25/2001 it was acquired by Lambert Lakes Inc., a real estate leasing and sales company, and its registration was changed to D-IMYA. Three years later, in August 2004, it was acquired by SFD (Stuttgarter Flugdienst GmbH), a German private jet charter company. Source: Flight Blog With the start of Mahan Airlines' efforts to purchase this VIP aircraft, it was first purchased by a private owner in Armenia on 10/04/2005 and entered the country with registration number EK-52526 on [unknown date]. Arriving in Iran and after three years of grounding, efforts began to activate it in late 2008 and the EP-MNZ civil registry was allocated for the aircraft, but Mahan failed to do so and the aircraft was again in the hangar of the company in Imam Khomeini Airport was grounded. Finally, in order to revive and develop small aircraft in the country, this aircraft performed its test flight on February 12, 2017, after completing the fuselage and engine checks, to return to the operational cycle. This Cessna has 6 VIP seats.

Real Photo:

Credit to @GuianLorenzo's for his original Cessna Citation CJ4