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Crash of a PZL-Mielec AN-2R in Olenek

Date & Time: Oct 13, 1979 at 1652 LT
Type of aircraft:
Operator:
Registration:
CCCP-70805
Flight Phase:
Survivors:
Yes
Schedule:
Olenek - Saskylakh
MSN:
1G133-08
YOM:
1972
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The aircraft took off from Olenek Airport at 1651LT. While climbing to a height of 100-120 meters, the engine lost power. The captain decided to return for an emergency landing and initiated a turn to the left when the airplane stalled and crashed, one minute after takeoff. The aircraft was destroyed and all five occupants were injured.
Probable cause:
It was determined that the loss of engine power was the consequence of the malfunction of the spark plugs due to an excessive accumulation of tetraethyl plumb.

Crash of a PZL-Mielec AN-2 in Chersky

Date & Time: Sep 25, 1979
Type of aircraft:
Operator:
Registration:
CCCP-92851
Flight Phase:
MSN:
1G53-03
YOM:
1965
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed after an engine failure. Occupant fate unknown.
Probable cause:
Engine failure for unknown reasons.

Crash of a PZL-Mielec AN-2 in Komsomol: 1 killed

Date & Time: Sep 24, 1979
Type of aircraft:
Operator:
Registration:
CCCP-25590
Flight Phase:
Survivors:
Yes
Schedule:
Komsomol - Komsomol
MSN:
1G61-16
YOM:
1965
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The crew was completing a crop spraying flight in Komsomol, west of Tezhen. While flying at low height, the crew saw a flock of birds and attempted an evasive maneuver when the airplane lost height, struck a pole with its landing gear and crashed. Both pilots escaped with minor injuries while one people on the ground was killed.

Crash of a PZL-Mielec AN-2R in Basino: 1 killed

Date & Time: Sep 20, 1979 at 1933 LT
Type of aircraft:
Operator:
Registration:
CCCP-56413
Flight Phase:
Survivors:
Yes
Schedule:
Malyushitsa – Rogotno
MSN:
1G180-57
YOM:
1978
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
709
Aircraft flight cycles:
3633
Circumstances:
All day, the crew completed crop spraying missions for the sovkhoz (state farm) of Rogotno and flew almost 16 hours. In the evening, the crew and two unauthorized people decided to takeoff for a flight from Malyushitsa (Korelichi district of the Grodno region) to Rogotno (Dyatlovo district of the Grodno region). En route, the crew encountered below minima weather conditions due to fog when the aircraft collided with trees and crashed in flames on a hilly terrain, about 2 km SSW of Basino (Novogrudok district of the Grodno region, 22 km northwest of Malyushitsa). The accident occurred nine minutes after sunset. While a passenger was killed, all three other occupants were injured.
Probable cause:
The crew decided to takeoff after sunset without clear information about weather conditions en route and was not authorized to initiate such flight. Various exams revealed that the crew was not intoxicated at the time of the accident, which was the case of the passengers.

Crash of a PZL-Mielec AN-2 in Kingisepp

Date & Time: Sep 10, 1979
Type of aircraft:
Operator:
Registration:
CCCP-28837
Flight Phase:
MSN:
1G04-06
YOM:
1961
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed following an engine failure. Occupant fate unknown.
Probable cause:
Engine failure.

Crash of an Antonov AN-24B in Amderma: 40 killed

Date & Time: Sep 3, 1979 at 0101 LT
Type of aircraft:
Operator:
Registration:
CCCP-46269
Survivors:
Yes
Schedule:
Arkhangelsk - Amderma
MSN:
77303602
YOM:
1967
Flight number:
SU513
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
37
Pax fatalities:
Other fatalities:
Total fatalities:
40
Aircraft flight hours:
19917
Aircraft flight cycles:
13194
Circumstances:
The approach to Amderma Airport was initiated by night when the airplane descended below the glide. At a speed of 206 km/h, the airplane struck the ground 1,850 meters short of runway threshold and crashed in flames on a small hill located 140 meters to the left of the extended centerline. Two passengers and a crew member were seriously injured while all 40 other occupants were killed.
Probable cause:
The accident was the consequence of a series of violations on part of the flying crew who failed to follow the published procedures regarding the approach completed by night, which resulted in a premature descent, causing the aircraft to continue the approach below the glide until impact with the ground. The following contributing factors were reported:
- The real altitude of the aircraft was less than the one reported by the navigator,
- The pilot-in-command decided to continue the approach once the aircraft passed below the glide,
- The pilot-in-command failed to initiate a go-around maneuver,
- Poor crew coordination,
- The navigator in charge of the approach was under training and his instructor failed to assist during the approach maneuver,
- The total weight of the aircraft was 816 kilos above the MTOW at takeoff from Arkhangelsk.

Crash of a Tupolev TU-124V in Kirsanov: 63 killed

Date & Time: Aug 29, 1979 at 0026 LT
Type of aircraft:
Operator:
Registration:
CCCP-45038
Flight Phase:
Survivors:
No
Schedule:
Odessa - Kiev - Kazan
MSN:
3 35 10 03
YOM:
1963
Flight number:
SU5484
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
58
Pax fatalities:
Other fatalities:
Total fatalities:
63
Aircraft flight hours:
23232
Aircraft flight cycles:
18369
Circumstances:
The airplane departed Kiev-Borispol Airport at 2321LT on the second leg of a flight from Odessa to Kazan. While cruising by night at an altitude of 9,000 meters and a speed of 530 km/h, the flaps extended to an angle of 30°. The airplane entered a spin and partially disintegrated at an altitude of 4,000 meters before crashing in a field located near Kirsanov. The aircraft was totally destroyed and debris were found on a wide area. None of the 63 occupants survived the crash.
Probable cause:
It was not possible to determine the exact cause of the extension of the flaps to an angle of 30° while the aircraft was in normal cruise with the autopilot system engaged. Various analysis could not define if the extension was the result of an electrical failure or a human action, voluntary or not. The most likely cause for flap release could be moving the handle of the left pilot flap control switch to the 'down' position by an angle sufficient to trigger the switch. The design of the locking device of the ZPPM-45 switch of the left pilot and its geographical situation does not exclude the possibility of an unintentional flap release, which was revealed by a one-time check of these devices on 16 others Tupolev Tu-124 aircraft.

Crash of an Antonov AN-12TB near Yeniseysk: 11 killed

Date & Time: Aug 24, 1979 at 0156 LT
Type of aircraft:
Operator:
Registration:
CCCP-12963
Flight Type:
Survivors:
Yes
Site:
Schedule:
Norilsk - Krasnoyarsk
MSN:
9 3 464 07
YOM:
1969
Flight number:
SU22200
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
10
Pax fatalities:
Other fatalities:
Total fatalities:
11
Aircraft flight hours:
18235
Aircraft flight cycles:
7006
Circumstances:
The aircraft departed Norilsk Airport in the late evening of August 23 on a cargo flight (SU22200) to Krasnoyarsk, carrying 10 passengers, a crew of six and a load of cargo consisting of six containers for a total weight of 1,920 kilos. Two hours and 18 minutes into the flight, while cruising by night at an altitude of 7,800 meters, all four engines failed simultaneously due to fuel contamination. The crew declared an emergency and initiated a descent to Yeniseysk Airport. On approach, due to low speed, the airplane lost height then struck tree tops and crashed in flames in a hilly and wooded terrain located 17,9 km short of runway. Five passengers were seriously injured while 11 other occupants, among them all six crew members, were killed.
Probable cause:
It was determined that all four engines failed simultaneously as the fuel was contaminated with water. It was also reported that the refueling system at Norilsk Airport was contaminated with water and that it had not been drained or controlled before being used. Analysis of fuel samples at the crash site showed a concentration of water and sediments between 37% and 88%. Finally, several passengers boarded without valid ticket and only upon captain permission, in violation with published procedures.

Crash of a Tupolev TU-134A near Kurilovka: 94 killed

Date & Time: Aug 11, 1979 at 1335 LT
Type of aircraft:
Operator:
Registration:
CCCP-65816
Flight Phase:
Survivors:
No
Schedule:
Chelyabinsk - Voronezh - Kichinev
MSN:
4 35 22 10
YOM:
1974
Flight number:
SU7628
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
88
Pax fatalities:
Other fatalities:
Total fatalities:
94
Aircraft flight hours:
12739
Aircraft flight cycles:
7683
Circumstances:
The airplane departed Voronezh Airport at 1254LT on the last leg of a flight from Chelyabinsk to Kishinev, Moldavia, carrying 88 passengers and a crew of six. At 1317LT, the airplane entered the Kharkiv ARTCC at an altitude of 8,400 meters. The crew requested several times the permission to climb to 9,600 meters but this was denied due to heavy traffic. Eight minutes later, a second Aeroflot Tupolev TU-134AK entered the same ARTCC at an altitude of 5,700 meters. Registered CCCP-65735, it was completing flight SU7880 from Tashkent to Minsk with an intermediate stop in Donetsk. On board were 77 passengers and a crew of seven, among them all staff from the Pakhtakor Tashkent Football Team who should play against the Dynamo Minsk Team in two days. The crew of the second TU-134 was first cleared to climb to 7,200 meters and later to 8,400 meters. The air traffic controller miscalculated the distance and timing between both aircraft. About 90 seconds later, at an altitude at 8,400 meters but on crossing airways, both airplanes collided at an angle of 95° from each other. The right wing of CCCP-65735 struck the cockpit of CCCP-65816. Both aircraft spiralled to the ground, partially disintegrated in the air and eventually crashed in fields located around the villages of Kurilovka, Nikolaevka and Elizavetovka, about 35 km northwest of Dnipropetrovsk. Debris were found on a large area and none of the 178 occupants survived the accident.
Probable cause:
The in-flight collision was the consequence of multiple errors on part of the Air Traffic Controller and his instructor in charge of the Kharkiv Southwest Sector. The following factors were reported:
- Violations of the published procedures,
- Poor assistance and negligence on part of ATC in level assignment,
- Non compliance with requirements and regulations in force on part of ATC,
- Non compliance with standard radio phraseology,
- Lack of coordination,
- Intense traffic,
- Stress situation.

Crash of a Tupolev TU-134AK near Kurilovka: 84 killed

Date & Time: Aug 11, 1979 at 1335 LT
Type of aircraft:
Operator:
Registration:
CCCP-65735
Flight Phase:
Survivors:
No
Schedule:
Tashkent - Donetsk - Minsk
MSN:
1 35 14 05
YOM:
1971
Flight number:
SU7880
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
77
Pax fatalities:
Other fatalities:
Total fatalities:
84
Aircraft flight hours:
10753
Aircraft flight cycles:
7075
Circumstances:
The airplane departed Donetsk Airport at 1311LT on the last leg of a flight from Tashkent to Minsk. On board were 77 passengers and a crew of seven, among them all staff from the Pakhtakor Tashkent Football Team who should play against the Dynamo Minsk Team in two days. At 1317LT, another TU-134 registered CCCP-65816 entered the Kharkiv ARTCC at an altitude of 8,400 meters. In charge to complete flight SU7628 from Chelyabinsk to Kishinev via Voronezh, the aircraft was carrying 88 passengers and a crew of six. His crew requested several times the permission to climb to 9,600 meters but this was denied due to heavy traffic. Eight minutes later, CCCP-65735 entered the same ARTCC at an altitude of 5,700 meters and his crew was first cleared to climb to 7,200 meters and later to 8,400 meters. The air traffic controller miscalculated the distance and timing between both aircraft. About 90 seconds later, at an altitude at 8,400 meters but on crossing airways, both airplanes collided at an angle of 95° from each other. The right wing of CCCP-65735 struck the cockpit of CCCP-65816. Both aircraft spiralled to the ground, partially disintegrated in the air and eventually crashed in fields located around the villages of Kurilovka, Nikolaevka and Elizavetovka, about 35 km northwest of Dnipropetrovsk. Debris were found on a large area and none of the 178 occupants survived the accident.
Probable cause:
The in-flight collision was the consequence of multiple errors on part of the Air Traffic Controller and his instructor in charge of the Kharkiv Southwest Sector. The following factors were reported:
- Violations of the published procedures,
- Poor assistance and negligence on part of ATC in level assignment,
- Non compliance with requirements and regulations in force on part of ATC,
- Non compliance with standard radio phraseology,
- Lack of coordination,
- Intense traffic,
- Stress situation.