Iran needs to sign cooperation agreements with General Electric(GE), Pratt & Whitney and Boeing as soon as U.S. sanctions on Iranare removed, Fars quoted an unidentified "informed source" as saying.

The source said that there were 15 out-of-work Airbus engines in Iran and if the engines are repaired, at least six planes could resume their flights.

General Electric is the manufacturer of engines for Airbus and similar planes, while Pratt & Whitney is the maker of engines for Boeing 727, 737 and 747 planes, the source said.

Iran's state radio reported on Wednesday that the United States would allow Iran to repair its old Airbus airliners in a third country.

Describing the U.S. move as positive, Director of Iran's Aviation Organization Nourollah Rezayee Niaraki said that "given the fact that a number of the Airbus 310s of Iran's navigation fleet are in need of engine repairs, we will take required measures to start cooperation with the U.S. aviation organization to fix them."

He said that Iran's Aviation Organization will soon be contacted by the U.S. side in this regard.

Most of Iran's airliners are 16 years old on average, causing frequent killing accidents.

Iran has accused the United States of preventing selling new planes and spare parts to Iran that led to many tragedies.

Iran's main carrier, Iran Air, has seven Boeings bought before the 1979 Islamic Revolution, 28 European Airbus, Fokker aircraft and plus seven Tupolevs.

Iran's 13 carriers have tried to upgrade their fleets with European aircraft, but the United States has exerted pressure on Europe not to sell planes to the Islamic Republic.