Crash of an Antonov AN-26 near Alma-Ata: 9 killed

Date & Time: Mar 6, 1987 at 1908 LT
Type of aircraft:
Operator:
Registration:
CCCP-26007
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Biisk - Alma-Ata - Leninabad
MSN:
99 01
YOM:
1980
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
9
Circumstances:
The aircraft was completing a cargo flight from Biisk to Alma-Ata, carrying four passengers (loadmaster), five crew members and a load of 3,600 kilos of various goods. About 70 km from the destination, the crew was cleared to descend from 6,000 to 3,600 meters. At this time, weather conditions were marginal with limited visibility and low ceiling. During the descent, several radios contacts were made between ATC and pilots but most of them were inaudible and the crew continued the descent without knowing his exact position and without any visual contact with ground obstacles. At 1908LT, the airplane struck the slope of a mountain (2,370 meters high) located 56 km east of Alma-Ata Airport. The wreckage was found 22 meters below the summit and all nine occupants were killed.
Probable cause:
The accident was the consequence of a controlled flight into terrain. The following contributing factors were reported:
- The flying crew failed to follow ATC instructions,
- Poor radio communication quality during the last two minutes prior to the accident, probably due to the mountain range,
- Lack of ATC assistance.

Crash of a Tupolev TU-134A near Almaty: 90 killed

Date & Time: Aug 30, 1983 at 2017 LT
Type of aircraft:
Operator:
Registration:
CCCP-65129
Survivors:
No
Site:
Schedule:
Kazan - Chelyabinsk - Alma-Ata
MSN:
60630
YOM:
1978
Flight number:
SU5463
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
84
Pax fatalities:
Other fatalities:
Total fatalities:
90
Aircraft flight hours:
9976
Aircraft flight cycles:
6515
Circumstances:
Following an uneventful flight from Chelyabinsk at an altitude of 10,200 meters, the crew was cleared to initiate the approach to Alma-Ata Airport in view of a landing on runway 05. By night, the crew was instructed to initiate a left turn and to descend to an altitude of 600 meters after being informed of an II-62 approaching eight km right of their position. As the aircraft was too low, the GPWS warning sounded in the cockpit. For unknown reasons, the crew failed to react promptly and initiated a corrective maneuver 23 seconds later. The aircraft nosed up to an angle of 14° then turned left to an angle of 11-12° when it struck two seconds later the slope of Mt Dolan (690 meters high) located about 36 km west of Almaty Airport. The aircraft disintegrated on impact and all 90 occupants were killed. The wreckage was found 24 meters below the summit.
Probable cause:
It was determined that the crew failed to prepare the approach maneuver according to published procedures. ATC failed to assist the crew properly and transmitted wrong instructions, causing the airplane to descent prematurely to the unsafe altitude of 600 meters and outside the approach diagram. The crew failed to be proactive when the GPWS alarm sounded and a corrective action was taken too late. It was also reported that the phraseology used by the pilots was non standard.

Crash of a Tupolev TU-154B-2 in Almaty: 166 killed

Date & Time: Jul 8, 1980 at 0039 LT
Type of aircraft:
Operator:
Registration:
CCCP-85355
Flight Phase:
Survivors:
No
Schedule:
Almaty - Rostov-on-Don - Simferopol
MSN:
79A355
YOM:
1979
Flight number:
SU4225
Country:
Region:
Crew on board:
10
Crew fatalities:
Pax on board:
156
Pax fatalities:
Other fatalities:
Total fatalities:
166
Aircraft flight hours:
2438
Aircraft flight cycles:
1124
Circumstances:
Following a night takeoff from Almaty Airport, while climbing to a height of 120-150 meters, at a speed of 355 km/h, the airplane entered an area of very high outside temperatures (between +30 and +40° C.). High winds and downdrafts were encountered as well. The airplane nosed down then descended and struck the ground at a speed of 400 km/h some 3,996 meters from the end of the runway. It struck a farm, exploded and crashed. None of the 166 occupants survived the crash and nine people on the ground were injured, three seriously. Debris scattered on 840 meters long and 130 meters wide.
Probable cause:
The accident was the consequence of the impact on the aircraft of an unpredictable, rarely encountered intense atmospheric turbulences area with downdrafts up to 14 meters per second (50 km/h) and a tailwind up to 20 meters per second (72 km/h). The following contributing factors were reported:
- The airplane was operated with a total weight close to the maximum allowable for those conditions,
- The high altitude of the airport,
- A high OAT.

Crash of an Antonov AN-24 in Alma-Ata

Date & Time: May 19, 1979
Type of aircraft:
Operator:
Registration:
CCCP-46734
Survivors:
Yes
MSN:
3 73 006 03
YOM:
1963
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Upon landing at Alma-Ata Airport, the landing gear collapsed. The airplane slid on its belly and came to rest. There were no casualties.
Probable cause:
Failure of the equipment upon landing for unknown reasons. The aircraft weight upon landing was within acceptable limits and the touchdown was properly completed by the crew.

Crash of a Tupolev TU-104A in Almaty: 90 killed

Date & Time: Jan 13, 1977 at 1814 LT
Type of aircraft:
Operator:
Registration:
CCCP-42369
Survivors:
No
Schedule:
Novossibirsk – Almaty
MSN:
8 66 012 03
YOM:
1958
Flight number:
SU3843
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
82
Pax fatalities:
Other fatalities:
Total fatalities:
90
Aircraft flight hours:
27189
Aircraft flight cycles:
12819
Circumstances:
On final approach to Almaty Airport runway 23, while at an altitude of 400 metres, the left engine caught fire. An explosion occurred and the airplane descended at a speed of 150-190 km/h and crashed in flames in a snow covered field located 3,280 metres short of runway threshold. The aircraft was destroyed and all 90 occupants were killed.
Probable cause:
Failure of a fuel line on the left engine caused the fuel to leak and to ignite while contacting hot air coming from the heating system due to a seal failure. This also resulted in a high carbon monoxide that spread in the cabin and the cockpit. Also, a fuel pump broke away.

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

Date & Time: Apr 14, 1973 at 0815 LT
Type of aircraft:
Operator:
Registration:
CCCP-35577
Flight Phase:
Flight Type:
Survivors:
Yes
Site:
Schedule:
Osinovka – Almaty
MSN:
1G115-28
YOM:
1970
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
1870
Circumstances:
While on a positioning flight from Osinovka-Andreyevka to Almaty for crop-spraying operations for the sovkhoz (state farm) 'Andreyevski' with 2 mechanics and 2 local guides on board, the captain decided not to circumvent the Chubundy (Shybyndy) mountain ridge but to make a straight-in flight. Few minutes later, he encountered below-minima weather conditions and decided to return to Andreyevka but this was too late. Shortly later, while completing a turn in clouds at an altitude of 1,200 meters, the single engine airplane collided with the summit of a ridge located about 15 km northeast of Andreyevka Airport and crashed. Injured, the copilot walked down the mountain to find help. The captain was killed while all five other occupants were injured.
Probable cause:
Controlled flight into terrain caused by wrong in-flight decisions on part of the captain.

Crash of an Antonov AN-24 in Almaty: 4 killed

Date & Time: Mar 24, 1969 at 0637 LT
Type of aircraft:
Operator:
Registration:
CCCP-46751
Flight Phase:
Survivors:
Yes
Schedule:
Alma-Ata - Karaganda
MSN:
47300905
YOM:
1963
Flight number:
SU2305
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
26
Pax fatalities:
Other fatalities:
Total fatalities:
4
Aircraft flight hours:
9607
Aircraft flight cycles:
7577
Circumstances:
Shortly after takeoff from Alma-Ata Airport, while climbing to a height of 80 meters, the airplane banked right, lost height and crashed in flames onto houses located in the village of Krasnoye Polye, near the airport. Few houses were destroyed as well as the aircraft. A crew member and three passengers were killed while 27 other occupants were injured. Fortunately, there were no casualties on the ground.
Probable cause:
It was determined that the right engine lost power during initial climb when the gear were retracted. The loss of speed caused the aircraft to stall.

Crash of an Ilyushin II-18B in Almaty: 3 killed

Date & Time: Nov 22, 1966 at 1036 LT
Type of aircraft:
Operator:
Registration:
CCCP-75665
Flight Phase:
Survivors:
Yes
Schedule:
Almaty – Semipalatinsk – Moscow
MSN:
188 0007 04
YOM:
1958
Flight number:
SU019X
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
60
Pax fatalities:
Other fatalities:
Total fatalities:
3
Aircraft flight hours:
8407
Aircraft flight cycles:
4440
Circumstances:
During take-off roll in poor weather conditions, the engine number 3 failed (probably due to the ingestion of wet snow). The aircraft veered off the snow covered runway to the right after a roll of 550 meters, got briefly airborne with a high angle of attack until the tail struck a 70 cm high mound. Out of control, the aircraft crashed in flames onto a hillside located 1,400 meters further on, by a river. Two passengers and a crew member were killed while all 65 other occupants were injured. The aircraft was destroyed.
Probable cause:
Failure of the engine number three during the takeoff roll due to a massive ingestion of wet snow that was thrown out from the right main gear.

Crash of an Ilyushin II-18B in Almaty: 64 killed

Date & Time: Jan 4, 1965 at 0003 LT
Type of aircraft:
Operator:
Registration:
CCCP-75685
Survivors:
Yes
Schedule:
Moscow – Omsk – Semipalatinsk – Almaty
MSN:
189 0011 05
YOM:
1959
Flight number:
SU101
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
95
Pax fatalities:
Other fatalities:
Total fatalities:
64
Aircraft flight hours:
6802
Circumstances:
The crew started the approach to Almaty Airport by night in below minima weather conditions. Despite the situation, the pilot continued the approach and let the aircraft pass below the glide. Suddenly, the airplane struck trees, banked right to an angle of 15° the crashed in flames in a snow covered field located 75 meters short of runway threshold. The wreckage was found 600 meters to the right of the extended centerline and the aircraft was destroyed upon impact. Three crew members and 64 passengers were killed while 39 other occupants were injured.
Probable cause:
The crew decided to continue the approach below minima weather conditions by night. The pilot-in-command failed to take the decision to go around. Poor ATC assistance was considered as a contributing factor.

Crash of a Lisunov LI-2 near Balkhash Lake: 6 killed

Date & Time: Dec 21, 1955 at 0645 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4981
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Almaty – Balkhash – Moscow
MSN:
2 34 433 07
YOM:
22
Flight number:
SU090
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
4023
Circumstances:
The aircraft left Almaty Airport at 0515LT bound for Moscow via Balkash, carrying one passenger, five crew members, 763 kilos of various goods and 683 kilos of mail. Upon departure, the total weight of the aircraft was 10,722 kilos, 22 kilos above MTOW. Enroute to Balkash, the crew encountered poor weather conditions. While flying in clouds, some instruments failed. The pilot-in-command lost his orientation and then the control of the aircraft that dove into the ground and crashed in a snow covered area located about 105 km southeast of the Balkash Lake. It was determined that the aircraft hit the ground in a 65° nose-down angle at high speed and disintegrated on impact, causing the debris to be scattered on more than 200 meters. All six occupants were killed.
Probable cause:
Failure of a vacuum regulator which cause the dysfunction of the gyrocompas and then the automatic pilot system. While cruising in very low visibility (night and clouds), the crew suffered a spatial disorientation and lost control of the airplane.