Tehran-Mehrabad

Iranian ATR72 aircraft registered EP-ATS operated by Iran Aseman Airlines was assigned to perform a domestic scheduled passenger flight from Tehran to Yasuj on 07:55 local time. The aircraft took off from Tehran Mehrabad International Airport (0III) at 04:35 UTC. (08:05 LMT) and the flight was the first flight of the day for aircraft and the crew. The cruise flight was conducted at FL210 on airway W144 and no abnormal situation was reported by the crew and the flight was continued on Tehran ACC frequency till the time the first officer requested latest weather information of the destination by contact to Yasuj tower then requested to leave FL210 to FL170 from Tehran ACC. When the aircraft was descending to FL170 and crew calling YSJ tower the aircraft descending was continued to altitude of 15000 ft. The aircraft was approved to join overhead of the airport and perform “circling NDB approach “to land on RWY 31 at the destination aerodrome. Finally the aircraft collided with a peak lee of DENA Mountains about 8.5 miles at North far from the airport and involved accident on 06:01 UTC. The aircraft was completely destroyed as a result of collision with the mountain at the altitude of approximately 13,300 ft.

The twin engine aircraft was flying to Zahedan with a crew of three (two pilots and a flight attendant) and four passengers, among them General Mahmoud Sadeqi, a senior police officer who was travelling to Zahedan to investigate the circumstances of a recent attack that killed four police officers. While approaching Zahedan by night, the crew failed to realize his altitude was too low when the airplane struck the slope of a mountain located in the Sabzpushan Heights, north of the airport. The wreckage was found the following morning. All seven occupants were killed. A day later, Iranian Authorities said the accident was caused by technical flaws, darkness and the pilot’s unfamiliarity with the region.

On August 10,2014, at 04:52 UTC daylight time, an AN-140-100 aircraft , Iranian registration EP-GPA ( MSN 90-05), operated by Sepahan Airlines flight # 5915, experienced engine number 2 shutdown just about 2 seconds before lift-off and crashed shortly after take-off nearby Mehrabad International Airport (THR), TEHRAN; IR. Of IRAN; the aircraft was on lift off from runway 29L. The airplane was completely destroyed by impact forces and post-crash fire. Fatality incorporates 34 of the 40 passengers; 4 of the 4 flight attendants, and 2 of the 2 flight crewmembers. The 11 passengers received serious injuries, which finally as a result of that accident there are 40 fatalities and 8 passengers recovered from injury. Sepahan Airline was operating under the provisions of CAO.IRI operational requirement for commercial air transport. Before the accident flight the airplane dispatch from Isfahan and arrived at Tehran about 03:30. The dispatcher and PIC perform the load calculation using the aircraft FM performance charts. Because of load limitation for 15° flap position, load sheet change and re-write with 10° flap position and re-calculated MTOM. The aircraft was enrouted to Airport Tabbas Visual meteorological conditions (VMC) prevailed, and an instrument flight rules (IFR) flight plan was filed. Figure 1 below is a map showing the location of the accident and the aircraft flight path. Figure 2 shows THR runway 29L SID and figure 3 show timeline of event in the flight path. According to overview of flight crew performance, it is indicated that the crewmembers were provided with the flight release paperwork, which included weather information, notices to airmen (NOTAM), and the flight plan.

The aircraft departed Tehran-Mehrabad Airport at 1815LT with a delay of more than two hours due to poor weather conditions at destination. While descending to Orūmīyeh Airport by night, the crew encountered poor weather conditions with snow falls, visibility 800 metres and three ceilings at 1,500, 2,000 and 6,000 feet. After the crew was unable to intercept the ILS, the decision to initiate a go-around procedure was taken. Approaching the stall speed, the stick shaker activated and the aircraft probably encountered icing conditions. In a left bank angle estimated between 26 and 40°, the engine n°3 and 1 failed. At an altitude of 600 feet and at a speed of 96 knots, the flaps were retracted, causing the aircraft to stall and to impact the ground. The aircraft broke in three but there was no fire. 70 passengers and 8 crew members were killed while 27 other occupants were injured, some seriously.

Following an uneventful flight from Tehran, the crew started the descent to Tabriz and was informed by ATC that visibility was low due to heavy rain falls. After landing on runway 30R (3,556 metres long), the aircraft was unable to stop within the remaining distance. It overran and rolled for about 500 metres before coming to rest in a ditch. All 110 occupants were rescued, among them two passengers were slightly injured. The aircraft was damaged beyond repair as the nose was destroyed and the bulkhead severely damaged.

The crew departed Tehran-Mehrabad Airport for a local training mission. While cruising south of the capital city, the crew declared an emergency following an engine failure and elected to return. During the emergency descent to runway 29L, the radome located on the roof detached and hit the tail. Out of control, the aircraft crashed in an open field located near Varamin. The aircraft disintegrated on impact and all seven occupants were killed. It is believed that the radome detached because the aircraft' speed exceeded its certification during the emergency descent.

Shortly after take off from Ahwaz Airport, while in initial climb, the engine n°2 suffered an uncontained failure. The crew informed ATC about the situation and was cleared for an immediate return. The aircraft landed safely 10 minutes later and was stopped on the main runway. All 174 occupants were rescued, among them two passengers were slightly injured. The aircraft was considered as damaged beyond repair as n°1 engine and the left wing were also damaged due to debris from the n°2 engine's compressor.

At July 24, 2009, Ilyushin aircraft, model IL-62M of DETA Airline with registration, UP-I6208 and flight IRX1525 of Aria Airline flight with 169 passengers from Mehrabad International Airport/ Tehran, and it has landed at 18:05 local time on RWY 13 L in Mashhad International Airport; then it has run off from end of the runway, without considerable reduction in aircraft speed and it collided with wall of the airport and it was stopped after approximately 185 m. The mentioned aircraft has been leased by Aria Airline as ACMI, according to contract No. 002/IL-62M/ACMI. Subsequently, the ground safety unit of the airport has attended in place of occurring accident, by breaking protective fences and barbed wires of the airport, and then they evacuated passengers and extinguished fire outside of aircraft by carrying out necessary actions. 16 people were killed, 11 crew members and five passengers. All other occupants were rescued, among them 30 were injured. Accident site inspection revealed that the aircraft position had coordinates N 36,218º E 59,666º, at a road in the vicinity of the aerodrome, 1km away from the RWY-31R threshold (130º MH or 133, 5º TH) of the Mashhad airport with the azimuth of 125º (true). Power line along the road was destroyed by the right aircraft wing. Wing fuel tanks of the right wing were damaged evidenced by fuel leaking. Main and emergency exits were open. An inflatable slide was dropped down from the port side. No evidences of fire on board and at the accident site were found. First tracks of intensive braking (black tire tracks) were found at the concrete at a distance of 550 m from the departure threshold of RWY31R. The track of the main gear wheels was going along the RWY in its left part, and diverging further to the right beyond the departure threshold. At about 100m away from the threshold at the end portion of the braking way, a net barrier was found (textile aerodrome emergency braking unit).The aircraft ran over the RWY when moving along the right side of the stop way, 300m long. Beyond the end of the RWY landing gear wheels track could be clearly seen passing over a rough partly grassed surface, and crossing a dirt road. At a distance of 100m from the RWY end, where the right gear crossed the road, a destroyed tire tube was found, which presumably belonged to the right gear front wheel. At a distance of 160m from the RWY end smashed approach lights were found, and after that point the gear wheel track started to diverge to the left from the RWY centerline. The front gear wheel track further merged with the left gear wheel track and extended joining the forward airframe track. At a distance of 320 m from the RWY end another line of broken approach lights were found. Airframe structures were found before the approach lights (along the aircraft way). From that point small aircraft structure pieces were found along the whole aircraft path. 40m past the destroyed approach lights line a ditch of 0,5…1m in depth was found (with an underground pipeline) which was crossing this area from the south to the north. The south-eastern part of the aerodrome was fenced with a brick wall of 2,5m high and 0,4m thick with a concrete strip foundation. It went along the RWY there. The aircraft collided with the fence at a distance of 820m from the departure threshold (520m past the stop way end) with a heading of 105 degrees. The fence was destroyed throughout 70m. Debris of the nose part of the airframe, cockpit, passenger seats, aircraft cabin parts were found behind the fence. Earlier aerodrome employees, police and medical services found at the site and evacuated crew bodies, as well as killed and injured passengers. After the collision with the fence the aircraft kept moving for 160 m with a heading of 105 degrees and came to a stop at the road.

After landing on runway 29L at Tehran-Mehrabad Airport, the right main gear collapsed. The aircraft veered off runway to the right and came to rest. All 114 occupants were uninjured and the aircraft was damaged beyond repair.

While preparing the flight at Tehran-Mehrabad Airport, the copilot proceeded with a walk around check of the airplane. As the OAT was near freezing level and there were some light snow showers, he requested a deicing. Nevertheless, as there were already a few number of aircraft waiting for deicing, the captain decided to takeoff without deicing. At 0731LT, the crew was cleared for takeoff and started the takeoff procedure. After liftoff, the aircraft started to roll to the left then to the right. Losing altitude, the left wing impacted ground and the aircraft crash landed, coming to rest and bursting into flames. All 113 occupants were rescued, among them 11 were seriously injured including four crew members.