Crash of a Tupolev TU-134A in Penza: 1 killed

Date & Time: Jun 22, 1986 at 2137 LT
Type of aircraft:
Operator:
Registration:
CCCP-65142
Flight Phase:
Survivors:
Yes
Schedule:
Penza - Simferopol
MSN:
60955
YOM:
1978
Flight number:
SU5569
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
59
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
15938
Aircraft flight cycles:
10397
Circumstances:
38 seconds after the crew started the takeoff procedure, at a speed of 230 km/h and after a course of 1,450 meters, a warning sounded in the cockpit, informing the crew about the failure of the right engine. The captain took over control and initiated an emergency braking procedure. Thrust reversers were activated seven second later and the aircraft started to slow down. As the end of the runway was approaching the captain wanted to avoid any collision with the approach lights and ILS system, he veered off runway to the left. While contacting soft ground, the airplane lost its undercarriage then struck a drainage ditch and came to rest, broken in two, about 530 meters from the runway end and about 47 meters to the left of its centerline. Seven passengers were injured while 57 other occupants escaped uninjured. A passenger died from a heart attack.
Probable cause:
It was determined that the right engine was running properly at the time of the accident and that a malfunction of the warning sound system caused the alarm to activate by mistake.

Crash of a Tupolev TU-154B-2 in Moscow

Date & Time: May 21, 1986 at 1521 LT
Type of aircraft:
Operator:
Registration:
CCCP-85327
Survivors:
Yes
Schedule:
Abakan - Chelyabinsk - Moscow
MSN:
79A327
YOM:
1979
Country:
Region:
Crew on board:
10
Crew fatalities:
Pax on board:
175
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
11922
Aircraft flight cycles:
4687
Circumstances:
Following an uneventful flight from Chelyabinsk to Moscow in relative good weather conditions, the crew started the descent to Moscow-Domodedovo when the weather conditions worsened. While descending to an altitude of 3,600 meters, the aircraft entered an area of heavy rain falls and icing (a cold front was passing over Moscow at that time). The Pitot tubes became obstructed, modifying some instruments settings. The airspeed indicator fell to zero and the crew thought the aircraft was near stall conditions so he initiated an emergency descent with a rate of descent of 100 meters per second and a speed of 813 km/h. The aircraft encountered positive acceleration of 3,2 g and suffered structural damages. The crew was able to divert to Moscow-Sheremetyevo Airport where an emergency landing was completed. All 185 occupants evacuated safely and the aircraft was later declared as damaged beyond repair due to irreparable damages to the main structure (fuselage).
Probable cause:
It was determined that the crew failed to prepare the light properly at Chelyabinsk Airport and failed to follow the pre-takeoff checklist. Doing so, the crew forgot to activate the Pitot heating system. While descending to Moscow, the Pitot tube became obstructed by ice because they were not heated.

Crash of a Yakovlev Yak-40 near Khanty-Mansiysk: 5 killed

Date & Time: May 17, 1986 at 1557 LT
Type of aircraft:
Operator:
Registration:
CCCP-87928
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Khanty-Mansiysk - Khanty-Mansiysk
MSN:
9 74 19 55
YOM:
1977
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
The aircraft suffered an incident at Chita Airport last April 18 when the nose gear collapsed on landing. Following repairs, the crew (three pilots and two engineers) was engaged in a local test flight out from Khanty-Mansiysk Airport. While cruising at an altitude of 6,000 meters, the ailerons were deployed to an angle of 8,5° then the aircraft turned to the right. Eight seconds later, it went out of control, overturned and entered a dive. With a rate of descent of 100 meters per second, the aircraft reached the speed of 620 km/h. With a positive acceleration of 5,25 g the left wing separated and struck the base of the tail that was torn off. The aircraft continued its uncontrolled descent until it crashed in an open field located near the Ob River, about 19 km northwest of the Khanty-Mansiysk Airport. The aircraft was destroyed and all five crew members were killed. The wreckage was found a day later.
Probable cause:
It was determined that the captain elected to perform a barrel in flight, in violation of all published procedures in force.
Final Report:

Crash of an Antonov AN-12B near Graham Bell Island

Date & Time: May 3, 1986
Type of aircraft:
Operator:
Registration:
CCCP-12962
Flight Type:
Survivors:
Yes
MSN:
9 3 464 06
YOM:
1969
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
26140
Aircraft flight cycles:
9696
Circumstances:
The crew was completing a cargo/supply mission to local scientists based in the Franz-Josef Archipelago. On approach to Ledovaya Baza airfield located about 53 km north of the Graham Bell Island, the crew encountered whiteout conditions when the aircraft crashed short of runway and came to rest. All five crew members escaped uninjured and the aircraft was repairable. A team was dispatched to recover the plane and on May 13, while trying to get it out from his position, the aircraft went through the ice and sank.

Crash of a Yakovlev Yak-40 in Chita

Date & Time: Apr 18, 1986
Type of aircraft:
Operator:
Registration:
CCCP-87301
Survivors:
Yes
MSN:
9 32 17 28
YOM:
1973
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
27
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Upon landing at Chita-Kadala Airport, the right main landing gear collapsed. This caused the right wing to struck the ground and the aircraft slid several yards then veered off runway to the right and came to rest. While all 32 occupants were uninjured, the aircraft was damaged beyond repair.
Probable cause:
The right main landing gear collapsed upon landing after the kingpin arm of the folding brace mount failed due to manufacturing defect.

Crash of an Antonov AN-12AP in Omsk: 9 killed

Date & Time: Mar 25, 1986
Type of aircraft:
Operator:
Registration:
CCCP-11795
Flight Type:
Survivors:
No
Schedule:
Tbilisi - Omsk
MSN:
8 9 007 04
YOM:
1968
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
9
Aircraft flight hours:
11980
Aircraft flight cycles:
6026
Circumstances:
The four engine aircraft was completing a cargo flight from Tbilisi to Omsk, carrying three passengers, six crew members and a load of 10,400 kilos of various goods. On final approach to Omsk-Severnyy Airport, the crew encountered poor visibility due to bad weather conditions. On short final, the captain continued below the minimum descent altitude when the aircraft struck trees and crashed in a wooded area located 2,130 meters short of runway threshold, bursting into flames. The aircraft was totally destroyed by fire and all nine occupants were killed.
Probable cause:
The decision of the crew to continue the approach below the MDA without having establish any visual contact with the approach lights and runway lights. At the time of the accident, the visibility was below minimums and the crew was unable to initiate a go-around and to divert to the alternate airport of Tyumen as the fuel reserve was insufficient.

Crash of an Antonov AN-24B in Bugulma: 38 killed

Date & Time: Mar 2, 1986 at 0304 LT
Type of aircraft:
Operator:
Registration:
CCCP-46423
Survivors:
No
Schedule:
Moscow - Cheboksary - Bugulma
MSN:
0 73 041 08
YOM:
1970
Flight number:
SU77F
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
34
Pax fatalities:
Other fatalities:
Total fatalities:
38
Aircraft flight hours:
31570
Aircraft flight cycles:
23765
Circumstances:
On approach to Bugulma Airport by night, the left propeller autofeathered. The aircraft speed dropped and the aircraft started to veer to the left. The crew elected to maintain directional control but the speed continued to drop. At a speed of 140 km/h, the aircraft banked left to an angle of 110° then stalled and crashed in a field located 8 km from the runway threshold and 500 meters from its extended centerline. The aircraft was totally destroyed and all 38 occupants were killed.
Probable cause:
The left propeller autofeathered one second after the flaps were deployed in an angle of 38° because an electrical switch connected to the automatic feathering system failed. This situation affected the aircraft stability and controllability and the crew was unable to correct abnormal yaw and roll following several errors.

Crash of an Antonov AN-26B in Saransk

Date & Time: Feb 6, 1986 at 2323 LT
Type of aircraft:
Operator:
Registration:
CCCP-26095
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Nizhnevartovsk – Sverdlovsk – Saransk – Gomel
MSN:
27312302
YOM:
1972
Flight number:
SU14454
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
3088
Aircraft flight cycles:
1301
Circumstances:
The aircraft was completing a cargo flight from Nizhnevartovsk to Gomel with intermediate stops in Sverdlovsk and Saransk, carrying six crew members and a load of 2,100 kilos of various goods. Less than one minute after takeoff from Saransk Airport, while climbing by night at an altitude of 150 meters, the aircraft entered a left turn then lost height and crashed at a speed of 390 km/h (rate of descent of 4,3 meters per second) two km past the runway end. The aircraft was destroyed and all six occupants were injured.
Probable cause:
It was determined that the pilot-in-command misinterpreted red lights on the localizer and inner marker beacon for the anti-collision lights of an approaching aircraft and initiated a left turn to avoid collision when control was lost. No aircraft was approaching Saransk Airport at the time of the accident. It was also determined that the mass and balance was incorrect as the total weight of the cargo was 3,500 kilos instead of 2,100 kilos.

Crash of a PZL-Mielec AN-2 near Nazimovo: 4 killed

Date & Time: Nov 16, 1985
Type of aircraft:
Operator:
Registration:
CCCP-07877
Flight Phase:
Flight Type:
Survivors:
No
MSN:
1G170-36
YOM:
1976
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
The crew received a special permission for an ambulance flight as the weather conditions were poor and the visibility was below minimums. En route, the crew encountered snow falls and icing conditions when the aircraft crashed in the region of Nazimovo. As the airplane failed to arrive at destination, SAR operations were initiated but eventually abandoned after few days as no trace of the aircraft nor the four occupant was found. The wreckage was found on 18 June 1986 in an isolated area. It was determined that the aircraft struck tree tops in a 30° nose-down angle and crashed in a wooded area.

Crash of a PZL-Mielec AN-2 near Ugohan River

Date & Time: Sep 11, 1985
Type of aircraft:
Operator:
Registration:
CCCP-32103
Flight Phase:
Site:
MSN:
1G93-09
YOM:
1968
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Struck a hill and crashed near Ugohan River, south of Khabarovsk krai, while cruising at an insufficient altitude. Occupant fate unknown.
Probable cause:
Failure of the crew to respect the minimum safe altitude.