When the United States sells military aircraft to other countries, the deal normally requires that the aircraft undergo major overhaul/rebuild by U.S. companies. Iran is now offering the same service, for U.S., Russian and Chinese built military aircraft.
The Iran Iraq War of the 1980s, along with increased U.S. sanctions, forced Iran to learn how to rebuild their U.S. made war planes. There are indications that Iran has even built “new” F-14s to replace those lost in the Iran Iraq War. Iran soon learned how to overhaul Russian and Chinese aircraft during the 1990s.
Iranian air force officials say they will now offer their overhaul/rebuild know how to other countries: “We are able to overhaul the planes of our neighboring countries for them. We do have this capability as well.”-Hamidreza Goudini, Islamic Republic of Iran Air Force
Iranian military leaders say the U.S. sanctions are actually good for Iran, because it forced Iran’s industries, military and civilian, to develop much faster than they would have without any sanctions. As a result Iran is a truly independent nation.