Tehran-Mehrabad

After completing two round-flights from Tel Aviv to Tehran via Larnaca (Cyprus), the aircraft was returning to Cyprus after having delivered the third tranche of cargo to Iran (a load of tank spare parts and ammunition). On its return flight from Tehran to Cyprus on its third trip, while on a 300° heading to the Turkish border, the crew was instructed to turn left heading 240° direct to Cyprus. For unknown reasons, the plane went off course to the north and crossed the Azerbaijan border without any clearance. Few minutes later, a Soviet Sukhoi Su-15 fighter was dispatched to intercept the CL-44. According to Soviet accounts at that time the crew failed to respond to radio calls as well as signals from the fighter pilot flying close to the CL-44's nose. The cargo plane, while probably making the procedure turn to the left, tried to get away. In unclear circumstances, both aircraft collided. They went out of control and entered a dive before crashing about 50 km from Yerevan. All four crew people on board the CL-44 were killed while the fighter pilot was able to bail out and was found alive. It is unclear whether the collision was intentional, the Soviet pilot said it was a deliberate attempt to down the enemy aircraft, while Western aviation experts examining his account believed he misjudged a turn and subsequently invented a story of self-sacrifice.

On the day of the accident, Iranian air traffic controllers went on strike, which led to hundreds of domestic flights being cancelled. At 1600LT the strike was interrupted and flights resumed. At 1740LT, the airplane departed Mashad Airport on schedule service IR291 to Tehran-Mehrabad Airport with 120 passengers and a crew of eight on board. At 1852LT, ATC based at Tehran-Mehrabad Airport cleared the crew for a direct approach to runway 29. At 1905LT, the dispatcher instructed the crew to take a 360° heading to reach the non-directional beacon of Varamin. On approach, the copilot informed the captain that the VORTAC was giving a wrong radial course but the captain failed to respond to this message. At 1911LT, while descending in limited visibility due to night, snow falls and foggy conditions, the airplane struck the slope of a mountain located in the Alborz Mountain Range. The wreckage was found few hours later in a snow covered terrain about 29 km north of Tehran Airport. The aircraft disintegrated on impact and none of the 128 occupants survived the crash.

After takeoff from runway 29 at Tehran-Mehrabad Airport, while climbing in limited visibility, the four engine airplane drifted to the right instead of making a left turn as mentioned in the Standard Instrument Procedures for OIII Airport Runway 29. At an altitude of 6,500 feet, the airplane struck the slope of a mountain (2,020 metres high) located 17 km northwest of the airport. The aircraft disintegrated on impact and all five occupants have been killed.

Preparing for takeoff on its flight back to Denmark, the crew completed a backtrack on runway 29L when he was instructed by ATC to expedite the procedure and to vacate due to traffic on approach. When the airplane reached the end of the runway, the crew initiated a turn to the left when the right main gear collapsed and punctured the right wing and the fuel tank. A fire ensued and the aircraft came to rest in flames. 15 passengers (7 Danish and 8 Swedish citizens) were killed while 81 other occupants escaped, some of them were seriously injured. The aircraft was partially destroyed by fire.

While approaching Tehran-Mehrabad Airport, the four engine airplane struck the slope of a mountain and crashed. All 10 occupants were killed.

On approach to Bombay by night, the crew encountered poor weather conditions with rain falls and limited visibility to 1,500 meters. Following a succession of errors, the crew completed the approach to Bombay-Juhu Airport runway 08 (1,143 meters long) instead of Bombay-Santa Cruz International Airport runway 09. After touchdown, the airplane was unable to stop within the remaining distance, overran and came to rest in flames into a ravine. All 122 occupants were evacuated, 9 of them were injured. The aircraft was damaged beyond repair.

The aircraft was completing a humanitarian flight from Hamburg to Dhaka with an intermediate stop in Tehran, carrying a crew of four and 27,5 tons of foods on behalf of the International Red Cross Comity. On final approach to Dhaka-Tejgaon Airport, the airplane went out of control and crashed onto several houses located in a district 10 km northwest of the airport. All four crew members were killed as well as four people on the ground.

En route from Tehran to Tabriz, the crew encountered unknown technical problems and decided to reduce his altitude and to attempt an emergency landing. The aircraft belly landed in a desert area located about 27 km northwest from Mianeh (120 km southeast from Tabriz) and slid for several yards before coming to rest in flames. Both occupants escaped while the aircraft was destroyed by a post crash fire.

The Avro York plane carried out a freight flight from Beirut to Tehran via Kuwait. On the Kuwait-Tehran leg of the flight several test manoeuvres were carried out by a check pilot who was examining the pilot in command and co-pilot for renewal of their licenses. Shortly after takeoff, while climbing, the airplane went out of control and crashed in a huge explosion 11 km southeast of Karaj, west of Tehran. The aircraft was completely destroyed upon impact and all four crew members were killed.

The crew was engaged in the calibration of the Tehran-Mehrabad International Airport ILS system. While approaching the airport from the northwest, the crew encountered poor visibility due to heavy rain falls. The twin engine aircraft struck the slope of a mountain shrouded in clouds and located near the locality of Khozankala, about 33 km northwest of the airport. The aircraft was destroyed and all four crew members were killed. The wreckage was found near the Amir Kabir Dam.