An Iran Air Airbus A310-300, registration EP-IBK performing flight IR-729 from Tehran Imam Khomeini (Iran) to Cologne (Germany), was about 35 minutes into the flight when the crew observed high exhaust gas temperatures and vibrations for the left hand engine (CF6). After shutting the engine down the crew returned to Tehran's Imam Khomeini Airport for a safe landing.
A replacement Airbus A300-600 registration EP-IBC reached Cologne with a delay of 26 hours.
Source: The Aviation Herald
