Alia Royal Jordanian Airlines Flight 600

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Alia Royal Jordanian Flight 600
B-727-2D3 Alia JY-ADU F130-23b.jpg

The affected machine in Athens in 1977

Accident summary
Accident type Loss of control due to wind shear
place Doha airport , QatarQatarQatar 
date March 14, 1979
Fatalities 45
Survivors 19th
Injured 19th
Aircraft
Aircraft type United StatesUnited States Boeing 727-2D3
operator JordanJordan Alia Royal Jordanian Airlines
Mark JordanJordan JY-ADU
Surname The City of Petra
Departure airport Amman Airport , JordanJordanJordan 
Stopover Doha airport , QatarQatarQatar 
Destination airport Muscat Airport , OmanOmanOman 
Passengers 49
crew 15th
Lists of aviation accidents

On the Alia Royal Jordanian Airlines Flight 600 (Flight number: RJ600 ) occurred on March 14, 1979, a heavy flight accident than a Boeing 727-2D3 Alia Royal Jordanian Airlines shortly before the stopover at Doha Airport in Qatar accident . In the incident, 45 of the 64 people on board the plane died and 19 were injured.

machine

The aircraft involved in the accident was a Boeing 727-2D3, which was 4 years and 8 months old at the time of the accident. The machine was the work of Boeing on the Boeing Field in the state of Washington assembled and completed on 26 July 1974. its first flight before it was re-delivered on 14 August of that year to the Alia Royal Jordanian Airlines. The aircraft had the factory number 20886, it was the 1061. Boeing 727 from ongoing production. The machine was certified with the aircraft registration JY-ADU . The three - engine narrow -body aircraft was equipped with three Pratt & Whitney JT8D-9A engines.

Course of the flight and course of the accident

With the machine a night flight from should Amman via Doha Airport to Airport Muscat are performed. The aircraft took off from Amman at 9:55 p.m. and was controlled by the first officer on the flight. At 11:08 p.m., radio contact with approach control in Doha was established at a distance of 45 miles (approx. 65 km) from the destination airport. The pilots asked for the weather data. The air traffic controller reported this to the master and pointed out that a thunderstorm was gathering over the north-west of the airport. The captain asked for permission to land on runway 16 and received clearance for an approach to this runway or an approach using the radio beacon in the event that the pilots should not have the runway in sight.

At 11:17 p.m. the master reported to air traffic control in Doha while flying over the beacon. The air traffic controller informed the crew that heavy rain had started at the airport. The radio beacon ceased shortly afterwards, presumably due to a lightning strike, but was back in operation at 11:22 p.m. At 11:25 p.m. the master reported that the aircraft had flown the traffic pattern for the approach. The machine then received clearance to land.

At 11:29 p.m., the captain announced that the runway was not in sight. A missed approach was carried out and clearance for an ILS approach on runway 34 was requested. Air traffic control reported to the pilots wind from an angle of 290 degrees with wind speeds of 14 knots and heavy rain. At 11:35 p.m., the master reported that the traffic pattern had flown and that the runway was in sight. A tail wind (180 degrees) with a wind speed of 6 knots was reported. While the approach continued for the next two minutes, the air traffic controller reported the change in wind conditions to 150 degrees at 13 and then 14 knots and finally 140 degrees at 17 knots. Since the first officer had problems aligning the machine along the glide path when the tailwind increased, he decided to make another missed approach before reaching the decision height, which was at 23:37:19 at an altitude of 300 feet (approx. 91 meters). was initiated. The captain asked for clearance to return to Dhahran Airport in Saudi Arabia , whereupon the air traffic controller gave the crew clearance to climb to 800 feet (approx. 244 meters). The engines were put into thrust mode for go- around and the buoyancy aids were adjusted to 25 degrees. The machine then rose to 750 feet (approx. 229 meters), but during the climb, the airspeed decreased continuously to 140 knots (approx. 259 km / h). The machine approached the ground at an increasing rate of descent until it finally hit the ground at a vertical speed of 4200 feet per minute (approx. 77 km / h), while the airspeed suddenly increased to 170 knots (approx . 315 km / h) increased.

The machine hit the left edge of the runway, 2050 meters behind the runway threshold at an angle of attack of 10 degrees and a wing pointing downwards by 5 degrees. After the first contact with the ground, the machine jumped up again, turned to the left, and then rolled to the right onto the top of the fuselage. She then continued to slide until she hit the airport fire department 800 meters past the point of first impact , which was 270 meters from the runway. The hull broke into three parts on the impact. Of the 64 people on board, 45 were killed, including four crew members and 41 of the 49 passengers.

root cause

The NTSB recorded wind shear and a gust of fall as the cause of the accident , to which the aircraft was exposed when flying through a storm front on its approach to Doha. The forces that acted on the machine through the gust of wind exceeded those that were available to counteract the force of nature. Ultimately, the accident was caused by the crew's decision to approach Doha Airport without taking into account the prevailing weather conditions.

swell