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Crash of a PZL-Mielec AN-2R near Vilnius

Date & Time: Apr 6, 1973
Type of aircraft:
Operator:
Registration:
CCCP-05820
Flight Phase:
Survivors:
Yes
MSN:
1G15-08
YOM:
1962
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
En route, the aircraft suffered an engine failure, forcing the crew to attempt an emergency landing near Vilnius. There were no casualties but the aircraft was damaged beyond repair.
Probable cause:
Engine failure.

Crash of an Antonov AN-2 near Ozernaya: 2 killed

Date & Time: Mar 24, 1973 at 1329 LT
Type of aircraft:
Operator:
Registration:
CCCP-05670
Flight Phase:
Flight Type:
Survivors:
Yes
Site:
Schedule:
Ozernaya – Ust-Bolcheretsk
MSN:
1 56 473 09
YOM:
1955
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
2
Aircraft flight hours:
10581
Aircraft flight cycles:
6600
Circumstances:
Few minutes after takeoff from Ozernaya while on a cargo flight to Ust-Bolsheretsk, the intoxicated captain deliberately deviated from the prescribed flight path. The aircraft entered clouds and crashed at a height of 350 meters into the snow covered northern slope of Mt Ukho located 9 km north of Ozernaya. A pilot and the passenger were killed while the sole survivor was seriously injured. At the time of the accident, the captain was intoxicated. A blood test revealed an alcohol level of 1.8 ‰.
Probable cause:
Pilot intoxicated.

Crash of an Ilyushin II-14M on Jokhov Island

Date & Time: Mar 11, 1973
Type of aircraft:
Operator:
Registration:
CCCP-04192
Survivors:
Yes
MSN:
7 34 34 07
YOM:
1957
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Following an uneventful survey flight over the region of the Jokhov Island, the crew landed on the island when the airplane exploded, caught and came to rest in flames. All occupants escaped uninjured while the aircraft was destroyed by fire.
Probable cause:
It was determined that an electric box caught fire in the cargo compartment and fuel drums later exploded.

Crash of an Antonov AN-2 near Lake Khattavtur: 3 killed

Date & Time: Mar 9, 1973 at 1325 LT
Type of aircraft:
Operator:
Registration:
CCCP-01262
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Yelushkino – Kondinskoye
MSN:
1 71 473 16
YOM:
1957
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Aircraft flight hours:
12736
Circumstances:
After eight workers have been dropped off in Yelushkino, the crew was returning to Kondinskoye with one passenger, the Director of Kondinskoye Airport. En route, the crew initiated hazardous manoeuvres and lost control of the airplane that nosed down to an angle of 90° and crashed in a snow covered field located southeast of Lake Khattavtur, about 57 km west of Kondinskoye. The aircraft was destroyed and all three occupants were killed. Blood analysis revealed an alcohol level of 0,8‰ with the copilot and 3,4‰ with the captain.
Probable cause:
Loss of control while the crew was intoxicated.

Crash of a PZL-Mielec AN-2R near Smolensk

Date & Time: Mar 7, 1973
Type of aircraft:
Operator:
Registration:
CCCP-70816
Flight Phase:
Survivors:
Yes
MSN:
1G133-19
YOM:
1972
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
En route, the engine failed. The pilot elected to make an emergency landing when the aircraft crash landed in a field near Smolensk. There were no casualties while the aircraft was written off.
Probable cause:
Engine failure.

Crash of an Antonov AN-2T in Serov

Date & Time: Mar 6, 1973
Type of aircraft:
Operator:
Registration:
CCCP-93467
Flight Phase:
Survivors:
Yes
Schedule:
Sverdlovsk – Serov – Ivdel – Ust-Manya
MSN:
1 31 473 05
YOM:
1953
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
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-12 on Graham Bell Island

Date & Time: Mar 6, 1973
Type of aircraft:
Operator:
Registration:
CCCP-11994
Flight Type:
Survivors:
Yes
MSN:
2 34 04 02
YOM:
1962
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed in unknown circumstances on Graham Bell Island while performing a cargo flight. Nobody was hurt but the aircraft was damaged beyond repair and abandoned in situ.

Crash of a Yakovlev Yak-40 in Semipalatinsk: 32 killed

Date & Time: Feb 28, 1973 at 1859 LT
Type of aircraft:
Operator:
Registration:
CCCP-87602
Flight Phase:
Survivors:
No
Schedule:
Semipalatinsk-Ust-Kamenogorsk
MSN:
9120118
YOM:
1971
Flight number:
SU167X
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
29
Pax fatalities:
Other fatalities:
Total fatalities:
32
Aircraft flight hours:
1798
Aircraft flight cycles:
1814
Circumstances:
Shortly after takeoff from Semipalatinsk Airport, while climbing to a height of 100 meters, the airplane lots height then struck the ground in a relative flat attitude and crashed in a huge explosion in a snow covered field located 1,457 meters past the runway end. The aircraft was totally destroyed and all 32 occupants were killed, among them 11 female members of the Kyzylorda Basketball Team accompanied by their coach and one judge.
Probable cause:
The exact cause of the accident could not be determined with certainty. Eyewitnesses among them the air traffic controller working in the tower saw a huge flash in the sky prior to the accident. Various analysis did not find any trace of explosives.

Crash of an Ilyushin II-18V near Leninabad: 79 killed

Date & Time: Feb 24, 1973 at 0737 LT
Type of aircraft:
Operator:
Registration:
CCCP-75712
Flight Phase:
Survivors:
No
Schedule:
Dushanbe - Leninabad - Moscow
MSN:
189 0018 04
YOM:
1959
Flight number:
SU630
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
71
Pax fatalities:
Other fatalities:
Total fatalities:
79
Aircraft flight hours:
20404
Aircraft flight cycles:
9590
Circumstances:
While cruising at an altitude of 6,600 meters, the crew received the permission to descent to 4,500 meters when the automatic pilot system was deactivated. Suddenly, the airplane banked left to an angle of 90° then entered a dive. At an altitude of 2,200 meters, due to excessive g loads, the left wing separated and the aircraft caught fire. Out of control, it crashed at a speed of 840 km/h in an open field located 8,4 km southeast of Buston Station, about 38 km northwest of Leninabad Airport. The aircraft disintegrated on impact and all 79 occupants have been killed.
Probable cause:
The exact cause of the accident could not be determined with certainty. However, the assumption that the loss of control, that occurred just after the automatic pilot system has been deactivated, was caused by the failure of an attitude indicator was not ruled out.

Crash of a Tupolev TU-154 in Prague: 66 killed

Date & Time: Feb 19, 1973 at 1006 LT
Type of aircraft:
Operator:
Registration:
CCCP-85023
Survivors:
Yes
Schedule:
Moscow - Prague
MSN:
72A023
YOM:
1972
Flight number:
SU141
Region:
Crew on board:
13
Crew fatalities:
Pax on board:
87
Pax fatalities:
Other fatalities:
Total fatalities:
66
Captain / Total flying hours:
12650
Captain / Total hours on type:
236.00
Copilot / Total flying hours:
14650
Copilot / Total hours on type:
247
Aircraft flight hours:
459
Aircraft flight cycles:
261
Circumstances:
The aircraft took off at 0650 GMT on a scheduled flight Moscow - Prague. Over the territory of the USSR the flight proceeded at 10 000 m, and this altitude was increased over the Romanian People's Republic to 10 650 m. Over Warsaw the aircraft was cleared to descend to 9 400 m, and near the Czechoslovak frontier it was cleared again to 8 850. The frontier was crossed at 6 700 m, the crew complying with all instructions. At 0854 GMT the aircraft reported overhead OKX that it had descended from 7 200 m to 6 700 m. Prague ACC cleared it to continue descent to 2 450 m and tune to Rodnice (RCE) VOR. At 0856 GMT the aircraft was instructed to maintain a track which would keep it in the middle of the airway. At 0900 GMT the aircraft reported overhead Rodnice at 2 450 m and was instructed to change over to the approach frequency 121.4 MHz. The aircraft at once contacted approach control and was cleared to fly via MO until it intercepted the approach beacon, then to descend to 1 200 m and report when crossing 1 500 m. The crew complied with these instructions. At 0902 GMT the aircraft reported descending through 1 500 m on a 135O heading and was instructed to change over to the ATC radar frequency. On this frequency it was cleared to continue flying to the ILS approach beacon, was given priority to land on Runway 25 and instructed to descend to 500 m on QFE 730.1 mm. At 0904 GMT the aircraft was cleared to descend to 350 rn on QFE and was informed that it was 2 km off the course line. After 40 seconds the radar controller informed the aircraft that it was correctly aligned and 15 km from the aerodrome, and at 0905 GMT he instructed the aircraft to switch over to the TWR frequency. After changeover the aircraft reported to TWR that it was approaching to land. TWR cleared it to land on Runway 25 and reported a change in the wind direction and speed to 250' - 4 m/s. At 0906 GMT, at its own request, the aircraft was given runway braking coefficient 5 and again cleared to land. This data was acknowledged by the aircraft at 0906.30 GMT, and this was the last contact with it. The aircraft flew the correct heights and headings and did not report any defects or trouble on the ATC frequencies. The descent to land proceeded normally along the ILS glide path up to the vicinity of the "L" marker. Near this aid the aircraft suddenly ducked under the glide path, continued to descend at an average angle of 4.62° to the glide path and struck the ground with the nosewheel at a point 467 m before the threshold of Runway 25. The aircraft disintegrated on impact and was also destroyed by a post crash fire. Four stewardesses and 62 passengers were killed, 18 occupants were seriously injured and 16 were uninjured.
Probable cause:
Owing to the high degree of destruction and total disintegration of the aircraft in the crash and ensuing fire it was not possible to establish the precise cause of the accident. The influence of unexpected atmospheric turbulence during the aircraft's final approach cannot be entirely ruled out.
Final Report: