Sverdlovsk oblast

Flight Type:

Survivors:

Site:

Schedule:

Sverdlovsk - Kostanay - Dzhambul

MSN:

9 43 13 35

YOM:

1974

Flight number:

SU1080

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

6291

Aircraft flight cycles:

5110

Circumstances:

Less than a minute after liftoff, while climbing in marginal weather conditions, the left engine failed. The captain informed ATC about the situation and was cleared to return for an emergency landing. Unable to gain height, the airplane struck trees at a speed of 210 km/h and crashed in a wooded area located on a hilly terrain about 7,5 km from the airport. The aircraft was totally destroyed and all 38 occupants were killed.

Probable cause:

It was determined that the left engine failed slightly less than a minute after rotation due to icing. For unknown reasons, the crew failed to follow the pre-takeoff checklist and did not activate the engine deicing systems despite the fact that icing conditions were reported in altitude. During climb, the left engine failed while both engines n°2 and 3 did not provide sufficient power. Also, it was determined that the total weight of the aircraft was 419 kg above MTOW while its speed at the time the left engine failed was insufficient, also because the landing gear were not completely raised.

Crash of a PZL-Mielec AN-2TP near Tavda: 14 killed

Date & Time: May 7, 1977 at 1402 LT

Type of aircraft:

PZL-Mielec AN-2

Operator:

Registration:

CCCP-44992

Flight Phase:

Flight

Flight Type:

Survivors:

Site:

Schedule:

Tavda - Tyumen

MSN:

1G27-15

YOM:

1962

Flight number:

SU801CH

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

16932

Aircraft flight cycles:

16482

Circumstances:

The single engine airplane departed Tavda Airport on flight SU801CH to Tyumen, carrying 12 passengers and two pilots on board. After takeoff, the crew was cleared to climb to an altitude of 150 meters and continued to the south. Few minutes later, while cruising in marginal weather conditions with rain falls, limited visibility of 2 km and low clouds, at an estimated altitude of 175 meters, the airplane collided with an Aeroflot Antonov AN-2 registered CCCP-15925 that was completing a service from Tyumen to Tavda with 15 people on board. Following the collision, both aircraft went out of control, entered a dive and crashed in flames in an open field located 18 km south of Tavda. Both wreckages were found 392 meters from each other and all 29 occupants on both aircraft were killed.

Probable cause:

The in-flight collision was the consequence of a lack of ATC assistance and the fact that both crew were flying under VFR mode in adverse weather conditions.

Crash of an Antonov AN-2 near Tavda: 15 killed

Date & Time: May 7, 1977 at 1402 LT

Type of aircraft:

Antonov AN-2

Operator:

Registration:

CCCP-15925

Flight Phase:

Flight

Flight Type:

Survivors:

Site:

Schedule:

Tyumen - Tavda

MSN:

1148 473 16

YOM:

1960

Flight number:

SU397

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

17513

Aircraft flight cycles:

17391

Circumstances:

The single engine airplane was completing flight SU397 from Tyumen to Tavda with 13 passengers and two pilots on board. While approaching Tavda from the south, the crew encountered marginal weather conditions with rain falls, limited visibility of 2 km and low clouds. At an estimated altitude of 175 meters, the airplane collided with an Aeroflot PZL-Mielec AN-2TP registered CCCP-44992 that was completing a service from Tavda to Tyumen and just departed Tavda Airport few minutes earlier with 14 people on board. Following the collision, both aircraft went out of control, entered a dive and crashed in flames in an open field located 18 km south of Tavda. Both wreckages were found 392 meters from each other and all 29 occupants on both aircraft were killed.

Probable cause:

The in-flight collision was the consequence of a lack of ATC assistance and the fact that both crew were flying under VFR mode in adverse weather conditions.

Crash of an Antonov AN-8 in Sverdlovsk: 6 killed

Date & Time: Oct 10, 1975

Type of aircraft:

Antonov AN-8

Operator:

Registration:

CCCP-69316

Flight Phase:

Flight Type:

Cargo

Survivors:

Site:

Schedule:

Sverdlovsk - Moscow

MSN:

0D3490

YOM:

1960

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

4361

Aircraft flight cycles:

3045

Circumstances:

Just after liftoff, while in initial climb, the left engine failed and caught fire. The was unable to feather the propeller so the aircraft lost speed and height, stalled and crashed in flames to the left of the runway. The aircraft was destroyed and all six crew members were killed.

Probable cause:

Failure of the left engine after the 3rd stage of the compressor failed and disintegrated due to the presence of fatigue cracks.

Crash of a PZL-Mielec AN-2 in Sverdlovsk

Date & Time: Sep 14, 1974

Type of aircraft:

PZL-Mielec AN-2

Operator:

Registration:

CCCP-70485

Survivors:

Yes

Site:

MSN:

1G141-79

YOM:

1973

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

Struck the ground and crashed near Sverdlovsk while flying in foggy conditions. There were no casualties.

Crash of a Tupolev TU-104B in Sverdlovsk: 108 killed

Date & Time: Sep 30, 1973 at 2037 LT

Type of aircraft:

Tupolev TU-104

Operator:

Registration:

CCCP-42506

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Sverdlovsk – Omsk – Novosibirsk – Chita – Khabarovsk – Vladivostok

MSN:

0 2 19 04

YOM:

1960

Flight number:

SU3932

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

100

Pax fatalities:

Other fatalities:

Total fatalities:

108

Aircraft flight hours:

20582

Aircraft flight cycles:

9412

Circumstances:

After takeoff by night from Sverdlovsk-Koltsovo Airport, the crew was cleared to climb to 1,500 meters and initiated a left turn as instructed by ATC. The airplane first banked left to an angle of 35-40° and at an altitude of 1,200 meters, the left angle increased to 75-80° when control was lost. The airplane entered a dive and crashed in a huge explosion in a wooded area located 10 km from the airport. The aircraft disintegrated on impact and none of the 108 occupants survived the crash. At the time of the accident, weather conditions were considered as marginal with a visibility limited to 6 km, overcast 800 feet, wind from northwest at 15 knots and light rain.

Probable cause:

It was determined that the loss of control during initial climb was the consequence of the failure of artificial horizons as a result of a malfunction of the on-board electrical system. The combination of night, lack of visibility and flight instruments failure caused the pilot to suffer a spatial disorientation and the eventual loss of control.

Crash of an Antonov AN-2T in Serov

Date & Time: Mar 6, 1973

Type of aircraft:

Antonov AN-2

Operator:

Registration:

CCCP-93467

Flight Phase:

Flight

Flight Type:

Survivors:

Yes

Site:

Schedule:

Sverdlovsk – Serov – Ivdel – Ust-Manya

MSN:

1 31 473 05

YOM:

1953

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

The engine failed in flight, forcing the pilot to attempt an emergency landing. The aircraft crash landed in a field in Serov and was damaged beyond repair. There were no casualties.

Probable cause:

Engine failure.

Crash of an Antonov AN-2 in Indra Lake: 10 killed

Date & Time: Jun 27, 1970 at 1800 LT

Type of aircraft:

Antonov AN-2

Operator:

Registration:

CCCP-93925

Flight Phase:

Flight Type:

Government

Survivors:

Yes

Site:

Schedule:

Indra Lake - Verkhnyaya Salda

MSN:

1 57 473 14

YOM:

1955

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

8953

Circumstances:

The crew attempted to takeoff from an airstrip located at Indra Lake bound for Verkhnyaya Salda with the MTOW exceeded by 170 kg and the center of gravity being out of the envelope (too far aft). With an intoxicated captain and an intoxicated passenger at the controls (the 2nd pilot was in the passenger cabin), the aircraft stalled at a height of some 15 metres, crashed, caught fire and burnt out. One pilot and nine passengers were killed. The aircraft was owned by the MOM – Ministerstvo Obshchestvo Mashinostroyeniya – Minobshchemash and operated by the NIITP (Nauchno-Issledovatelskom Institute Teplovykh Protsessov), the Research Institute for Thermal Processes.

Probable cause:

The accident was the consequence of the combination of the following factors:
- The total weight of the aircraft was in excess of 170 kg to the MTOW,
- The CofG was too far aft and out of the envelope,
- The captain and the second pilot (a passenger) were intoxicated.

Crash of an Ilyushin II-18V in Sverdlovsk: 107 killed

Date & Time: Nov 16, 1967 at 2103 LT

Type of aircraft:

Ilyushin II-18

Operator:

Registration:

CCCP-75538

Flight Phase:

Flight Type:

Survivors:

Site: