It took experts at Shahid Doran Air Base in Iran’s southwestern city of Shiraz more than 30,000 man-hour to overhaul the aircraft.
The military airplane made successful test flights after the overhaul and returned to service back in the air.
The Lockheed C-130 Hercules is a four-engine turboprop military transport aircraft designed and built originally by Lockheed, now Lockheed Martin.
Capable of using unprepared runways for takeoffs and landings, the C-130 was originally designed as a troop, medical evacuation, and cargo transport aircraft.
Before the victory of the Islamic Revolution, the overhaul of military planes in Iran was carried out by foreign military attaché. But today the Islamic Republic is able to overhaul military aircraft thanks to reliance on the capabilities of the country's committed engineers and technicians.
Iran has become one of only a handful of countries capable of performing the servicing and overhaul of its fleet of airplanes, both military and civilian.
This is while the country has been under sanctions since 1979 and the sanctions have become more intense after the country started its peaceful nuclear program.