Aeroflot flight 245

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Aeroflot flight 245
Ильюшин Ил-18-20-22-38 181003805, Минск - Боровая RP17884.jpg

Aeroflot aircraft of the same construction

Accident summary
Accident type Loss of control
place 10 km east of Chebotovka , Rostov Oblast , Soviet Union
date 17th December 1961
Fatalities 59
Survivors 0
Aircraft
Aircraft type Ilyushin Il-18B
operator Aeroflot
Mark CCCP-75654
Departure airport Moscow Vnukovo Airport
Destination airport Sochi airport
Passengers 50
crew 9
Lists of aviation accidents

On December 17, 1961, an Ilyushin Il-18 crashed on the inner-Soviet scheduled flight Aeroflot flight 245 from Moscow to Sochi , killing all 59 occupants.

crew

The crew consisted of a flight captain , a first officer , a flight engineer , a navigator , a radio operator and four flight attendants .

plane

The aircraft was a 3 year old Ilyushin Il-18 with the air vehicle registration CCCP-75654 , which was set up on 30 October 1958 for the first time and finally operated from 17 November 1958 to the accident by Aeroflot.

course

The Il-18 took off from Moscow at 14:34 and rose to a cruising altitude of 8000 m . At 15:47, the pilots reported reaching the airspace of Rostov-on-Don at a speed of 630 km / h . At 15:52, the air traffic controller in charge announced the position of the aircraft: azimuth 5 ° and a distance of 240 km , which the pilots confirmed. At 15:59 the air traffic controller reported that the Il-18 had crossed Luhansk , to which the pilots did not respond even after several attempts to establish radio contact. Shortly afterwards, the Il-18's signal also disappeared from the radar screen .

The burned wreck was finally discovered on a snow-covered field 10 kilometers east of the Chebotovka settlement and 80 meters south of the road between Chebotovka and Tarasovsky .

root cause

The main wreck extended about 300 to 350 m in a north-westerly direction, while the flaps of both wings were scattered 100 to 1000 m southwest of the point of impact. In addition, the engines dug 3.5 to 5 m deep into the ground.

It was found that the flaps broke off the wings while in the air after one of the pilots accidentally touched the corresponding lever while cruising and the flaps were fully extended (40 °). This resulted in a loss of longitudinal axis stability and the aircraft went into a nosedive due to its aerodynamic properties . Due to the negative (i.e. upwardly directed) g-forces , the pilots were unable to retract the landing flaps and thus not intercept the dive, which ultimately caused the aircraft to end up at 4 p.m. at a very high speed with a pitch angle of 107 ° and a slight incline to the left hit.

Furthermore, it was found that the design of the flap lever of the Il-18, unlike the Il-14 and Il-28, did not prevent it from being folded during flight. Instead, it helped by setting the lever to the middle position for cruise control. This contradicted the flight manual, since according to it this was the take-off and landing setting.

Alternative representations

Another theory suggests that the distribution of the wreckage about 12 km to suggest that that the plane instead by a rocket -type S-75 , fired at Kapustin Yar , had been shot down and that would be covered up.

Similar cases

On August 29, 1979, a Tupolev Tu-124 crashed on Aeroflot flight 5484 under similar circumstances.

swell

Coordinates: 48 ° 39 ′ 15.5 ″  N , 39 ° 59 ′ 56 ″  E