Crash of an Antonov AN-2T near Ayanka: 4 killed

Date & Time: May 7, 1977 at 1356 LT
Type of aircraft:
Operator:
Registration:
CCCP-23716
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Ayanka - Tilichiki
MSN:
183 473 15
YOM:
1957
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
4
Aircraft flight hours:
12738
Circumstances:
The airplane departed Ayanka Airstrip at 1332LT on a flight to Tilichiki, carrying one passenger, three crew members and a load of 10 empty fuel barrels. Sixteen minutes later, while cruising at an altitude of 1,800 meters in good weather conditions, the pilot informed ATC about a strong smell of fuel on board and elected to return to Ayanka. Six minutes later, engine fuel pressure dropped while the fuel smell was still present. A minute and 35 seconds later, the engine caught fire. The crew reduced his altitude and attempted an emergency landing when, at an altitude of 400 meters, the airplane nosed down and crashed by an angle of 60° in a small icy lake located 20 km southeast of Ayanka. The aircraft was destroyed and all four occupants were killed.
Probable cause:
A fuel leak whose origin remains unknown occurred in flight and the pilots' decision to return to Ayanka was correct. However, the intensity of the engine fire did not allow the crew to complete an emergency landing.

Crash of an Ilyushin II-14FKM in Penyok: 6 killed

Date & Time: Apr 5, 1977 at 1500 LT
Type of aircraft:
Operator:
Registration:
CCCP-61675
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Novosibirsk - Novosibirsk
MSN:
6 34 21 06
YOM:
1957
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
29251
Aircraft flight cycles:
21779
Circumstances:
The crew was engaged in a training flight out from Novosibirsk-Severny Airport. En route, while in cruising altitude, the crew simulated a failure of the left engine and gave maximum right rudder, leading to an aerodynamic overbalancing and resulting to a side-slip (it was impossible to return the rudder to the neutral position in this situation). The aircraft went out of control, entered a dive and crashed in a snow-covered swampy bush land located near the village of Penyok, some 91 km of the Novosibirsk-Tolmachevo Airport. All six crew members were killed.

Crash of a PZL-Mielec AN-2 in Natalin Yar: 5 killed

Date & Time: Mar 25, 1977 at 1459 LT
Type of aircraft:
Operator:
Registration:
CCCP-32112
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Urgench – Uralsk – Penza – Myashkovo
MSN:
1G93-18
YOM:
1968
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
5
Aircraft flight hours:
5950
Aircraft flight cycles:
19234
Circumstances:
A group of seven PZL-Mielec AN-2 must be transferred from Urgench, Uzbekistan, to Myashkovo, with intermediate stops in Uralsk and Penza, carrying mechanics and crew members. En route from Uralsk to Penza, while cruising at an altitude of 500 meters, both aircraft registered CCCP-28938 and CCCP-32112 entered a cloudy area with light rain. They collided then entered a dive and crashed in flames 350 meters further, 25 meters from each other. Both aircraft were totally destroyed and all 10 occupants were killed.
Probable cause:
Poor flight preparation and planning as all crew and the people in charge of the mission failed to analyze weather conditions en route. The collision occurred while both crew were flying under VFR mode in adverse weather conditions.

Crash of a PZL-Mielec AN-2 in Natalin Yar: 5 killed

Date & Time: Mar 25, 1977 at 1459 LT
Type of aircraft:
Operator:
Registration:
CCCP-28938
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Urgench – Uralsk – Penza – Myashkovo
MSN:
1G08-23
YOM:
1961
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
5
Aircraft flight hours:
10058
Aircraft flight cycles:
27097
Circumstances:
A group of seven PZL-Mielec AN-2 must be transferred from Urgench, Uzbekistan, to Myashkovo, with intermediate stops in Uralsk and Penza, carrying mechanics and crew members. En route from Uralsk to Penza, while cruising at an altitude of 500 meters, both aircraft registered CCCP-28938 and CCCP-32112 entered a cloudy area with light rain. They collided then entered a dive and crashed in flames 350 meters further, 25 meters from each other. Both aircraft were totally destroyed and all 10 occupants were killed.
Probable cause:
Poor flight preparation and planning as all crew and the people in charge of the mission failed to analyze weather conditions en route. The collision occurred while both crew were flying under VFR mode in adverse weather conditions.

Crash of a PZL-Mielec AN-2 near Syktyvkar: 1 killed

Date & Time: Mar 23, 1977 at 1330 LT
Type of aircraft:
Operator:
Registration:
CCCP-92841
Survivors:
Yes
Schedule:
Timsher – Ust-Kulom – Syktyvkar
MSN:
1G52-33
YOM:
1964
Flight number:
SU384
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
12589
Aircraft flight cycles:
20460
Circumstances:
The single engine airplane departed Ust-Kulom Airport at 1228LT bound for Syktyvkar with seven passengers and a crew of two on board, accompanied by a second Aeroflot AN-2 (CCCP-98382) that left at the same time. En route, weather conditions worsened and both crew lost visual contact with each other. Approaching Syktyvkar, the crew was informed about the deterioration of the weather with a limited visibility of 1,500 - 2,500 meters in snow. Few radios communications issues occurred and while descending at a height of 150 meters and making a right turn, the pilot saw the second AN-2 and made a sharp turn to avoid collision when control was lost. The airplane crashed on the icy Vychegda River, about 13 km from the Syktyvkar main Station. While the aircraft was destroyed, all nine occupants were injured. About four days later, one of the passengers died from his injuries.
Probable cause:
The main cause of the accident was the dangerous convergence of the aircraft due to the extremely irresponsible attitude of the management and dispatching personnel of the Syktyvkar ATC service to fulfill published procedures related to the organization and the control of the aircraft in deteriorated weather conditions.

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

Date & Time: Mar 6, 1977 at 1530 LT
Type of aircraft:
Operator:
Registration:
CCCP-40572
Flight Phase:
Flight Type:
Survivors:
No
MSN:
1G84-25
YOM:
1967
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
7735
Aircraft flight cycles:
7673
Circumstances:
In the morning, the crew completed two flights in the area. Due to engine problems, a technician was asked to make some engine test run. While the aircraft was parked on the ground, a technician proceeded to an engine test but forgot to install chocks on wheels. After the engine was started, power was added. The pilot who was standing by the door fell out of the plane that started to roll. After takeoff, the airplane climbed to a height of 12 meters, made a sharp turn to the left, stalled and crashed upside down. The technician, sole on board, was killed. It was determined that when the airplane started to roll quite roughly, the technician fell down from the pilot seat. Then, after liftoff, the cargo shifted to the rear of the cabin, causing the aircraft to stall.
Probable cause:
The technician in charge to proceed to an engine test started the engine and added full power without preparing the airplane properly and installing chocks on wheels prior to the test. The aircraft then moved roughly and became uncontrollable.

Crash of an Ilyushin II-18V in Mineralnye Vody: 77 killed

Date & Time: Feb 15, 1977 at 2317 LT
Type of aircraft:
Operator:
Registration:
CCCP-75520
Survivors:
Yes
Schedule:
Tashkent - Nukus - Mineralnye Vody
MSN:
183 0067 03
YOM:
1963
Flight number:
SU5003
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
92
Pax fatalities:
Other fatalities:
Total fatalities:
77
Aircraft flight hours:
29443
Aircraft flight cycles:
10817
Circumstances:
On final approach to Mineralnye Vody Airport by night, the crew encountered poor weather conditions. At a speed of 290 km/h, flaps were deployed at an angle of 30°, causing the airspeed to drop to 260 km/h. At a distance of 1,500 metres from the runway threshold, the captain decided to initiate a go-around as he was unable to establish a visual contact with the runway. During initial climb, at an altitude of about 90 metres, the airplane entered a right turn then rolled to the right at an angle of 15-30° and adopted a critical angle of attack of 15-18°. The tail stall and the airplane crashed in flames 2 km south of the airport. A crew member and 76 passengers were killed while 21 other occupants were injured. The aircraft was destroyed.
Probable cause:
Failure of the crew to adopt a proper go-around configuration after a missed approach. The loss of control during initial climb was the result of a premature raise of the flaps, which caused the aircraft to reach a critical angle of attack and to stall.

Crash of a Antonov AN-12BK-PPS near Kresttsy: 8 killed

Date & Time: Jan 21, 1977
Type of aircraft:
Operator:
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Šiauliai - Šiauliai
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
8
Circumstances:
The AN-12 departed Šiauliai Airport with two other AN-12 to take part to a training program, consisting of SU-11 fighter interception. While cruising at an altitude of 6,350 metres, the AN-12 collided under unknown circumstances with a SU-11. Both aircraft went out of control, entered a dive and crashed near Kresttsy. All eight crew members on board the AN-12 were killed as well as the SU-11's pilot.

Crash of an Antonov AN-22A near Seshcha AFB: 7 killed

Date & Time: Dec 22, 1976
Type of aircraft:
Operator:
Registration:
CCCP-09318
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Seshcha - Seshcha
MSN:
03340501
YOM:
1973
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
7
Circumstances:
The crew was conducting a test flight out from Seshcha AFB, Bryansk oblast. While cruising at an altitude of 6,000 metres, the crew initiated a turn with max rudder deflection when the airplane adopted a high angle of attack and control was lost. The airplane entered a dive, partially disintegrated in the air and eventually crashed in a field located about 20 km from the airbase. All seven crew members were killed.
Probable cause:
Loss of control caused by an inadequate rudder positioning in flight on part of the crew.

Crash of an Ilyushin II-14RR near Yuzhno-Sakhalinsk: 9 killed

Date & Time: Dec 18, 1976 at 1656 LT
Type of aircraft:
Operator:
Registration:
CCCP-61752
Survivors:
Yes
Site:
Schedule:
Petropavlovsk-Kamchatsky - Yuzhno-Sakhalinsk
MSN:
1470 012 47
YOM:
1957
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
9
Aircraft flight hours:
6627
Aircraft flight cycles:
4927
Circumstances:
While approaching Yuzhno-Sakhalinsk Airport by night on a survey flight from Petropavlovsk-Kamchatsky, the crew encountered limited visibility and marginal weather conditions. At an altitude of 850 metres, the twin engine airplane struck the slope of Mt Ostraya (910 metres high) located 12,5 km from the airport. The wreckage was found three days later. Two passengers (two hydrologists) were found alive while nine other occupants have been killed.
Probable cause:
A succession of errors on part of the crew led the aircraft following a wrong track on approach to Yuzhno-Sakhalinsk Airport. The lack of visibility and poor weather conditions were considered as contributing factors.