Crash of a Lisunov LI-2 in Sverdlovsk: 6 killed

Date & Time: Nov 12, 1954 at 1640 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4519
Flight Phase:
Survivors:
Yes
Schedule:
Leningrad – Moscow-Bykovo – Kazan – Sverdlovsk – Omsk – Novosibirsk
MSN:
184 290 02
YOM:
1948
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
10
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
7096
Circumstances:
One minute after takeoff from Sverdlovsk-Koltsovo Airport, while in initial climb, the airplane banked left and right and encountered difficulties to gain height when it stalled and crashed 250 meters past the runway end. The wreckage was spotted 150 meters to the left of the runway centerline. Both pilots and three passengers were killed while ten other occupants were injured. Two weeks after the accident, a passenger died from his injuries.
Probable cause:
It was determined that the flaps were deployed at 25° for takeoff, too much for this procedure. Thus, the aircraft's speed after rotation was too low, deteriorating its stability and its lateral control. Investigations were able to determine that the flying crew failed to identify and eliminate the abnormal behavior of the aircraft during initial climb, probably because his attention was diverted. This situation led the aircraft to stall and the distance between the aircraft and the ground was insufficient to expect a recovery. At the time of the accident, the crew was on duty since 13 hours and 40 minutes and the day before, it observed a ON duty period of 17 hours. Thus, it is believed that fatigue accumulated during these two consecutive days, which could be considered as a contributing factor.

Crash of an Ilyushin II-12P in Sverdlovsk: 4 killed

Date & Time: Aug 11, 1950 at 0210 LT
Type of aircraft:
Operator:
Registration:
CCCP-L1706
Survivors:
Yes
Schedule:
Khabarovsk – Omsk – Sverdlovsk – Moscow
MSN:
8 301 28 03
YOM:
0
Flight number:
SU008
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
22
Pax fatalities:
Other fatalities:
Total fatalities:
4
Aircraft flight hours:
906
Circumstances:
On the approach to land at Sverdlovsk-Koltsovo Airport by night and foggy conditions, crew dropped below the glide path due to pilot error. Aircraft touched tree tops 900 metres behind the outer marker and 160 metres to the right of the runway's extended centerline and crashed in a meadow 220 metres further on (3,100 metres from the perimeter of the airfield). Two crew and two passengers were killed while all 23 other occupants were injured, one of them seriously.
Probable cause:
Wrong approach configuration, poor discipline and inappropriate decisions on part of the crew who decided to continue the approach in poor visibility. In such conditions, it would be recommended to initiate a go around procedure.

Crash of a Lisunov LI-2 in Sverdlovsk: 3 killed

Date & Time: Dec 30, 1949 at 0530 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4704
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Moscow – Sverdlovsk – Omsk – Vladivostok
MSN:
184 313 04
YOM:
17
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Aircraft flight hours:
1194
Circumstances:
Few minutes after takeoff from Sverdlovsk-Koltsovo Airport, while climbing, the crew encountered severe icing conditions and the windshield went covered by ice. The pilot in command lost control of the aircraft that banked right and crashed right wing first in a field located 8,5 km southeast of the airport, near the Iset River. Two crew members and the passenger were killed while three other occupants were injured.
Probable cause:
The loss of control was the result of a series of mistakes on behalf of the crew who adopted poor flight techniques after departure. At the time of the accident, weather was marginal with severe icing conditions. It was stated that the crew was inexperienced, especially the copilot, which remains a contributing factor. The inefficiency of the windshield deicing system and a lack of crew training were also considered as contributing factors.

Crash of an Ilyushin II-12 in Novosibirsk: 25 killed

Date & Time: May 13, 1949 at 1410 LT
Type of aircraft:
Operator:
Registration:
CCCP-L1791
Survivors:
No
Schedule:
Moscow – Omsk – Novosibirsk – Krasnoyarsk
MSN:
93013208
YOM:
1949
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
20
Pax fatalities:
Other fatalities:
Total fatalities:
25
Aircraft flight hours:
51
Circumstances:
While descending to Novosibirsk Airport, the crew encountered bad weather conditions with thunderstorm activity, low clouds, poor visibility, hail and turbulences. On approach, lightning hit the cockpit. The copilot and the flight engineer were seriously injured and lost consciousness. The copilot fell onto the control column and the captain tried to maintain a directional control. Shortly later, the aircraft banked right to 65° and then dove into the ground and crashed in flames in a field located 12 km from the airport. The aircraft was destroyed by impact forces and a post crash fire and all 25 occupants were killed.
Probable cause:
The loss of control on approach was caused by adverse weather conditions resulting from a violent storm consisting of hail and turbulences. Investigations revealed that lightning struck the cockpit and that two crew members were seriously injured and lost consciousness, making it difficult to continue the flight. Investigators blamed the pilots who started the approach in such weather conditions but nevertheless hold that they were not properly briefed by meteorologists. It was concluded that the crash was the combination of the following factors: unexpected weather conditions, wrong decisions on part of the flying crew, poor management on part of the flight control service, lack of communication between the different departments involved and difficulties with radio contacts.

Crash of an Ilyushin II-12 in Novosibirsk: 1 killed

Date & Time: Sep 2, 1948 at 0015 LT
Type of aircraft:
Operator:
Registration:
CCCP-L1465
Flight Phase:
Survivors:
Yes
Schedule:
Khabarovsk – Chita – Irkutsk – Novosibirsk – Omsk – Sverdlovsk – Moscow-Vnukovo
MSN:
83 024 21
YOM:
7
Flight number:
SU006
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
15
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
Just after liftoff, while climbing to a height of 2-3 meters, the aircraft stalled. As the undercarriage have been raised, the aircraft hit the ground on its belly, causing the propeller of the right engine to be sheared off. A blade went through the fuselage and penetrated into the cabin, killing a passenger. The aircraft slid for several hundred yards, lost its left wing and left engine before coming to rest 491 meters past the runway end. Five passengers were injured and the aircraft was written off.
Probable cause:
The accident was attributed to a lack of coordination within the flight crew. It was determined that the flight engineer mistakenly reduced the engine power shortly after liftoff, causing the speed to drop and the aircraft to stall. The captain's lack of training was considered as a contributory factor.

Crash of an Ilyushin II-12P in Krasnoyarsk: 7 killed

Date & Time: Dec 18, 1947 at 0930 LT
Type of aircraft:
Operator:
Registration:
CCCP-L1343
Survivors:
Yes
Schedule:
Krasnoyarsk – Omsk
MSN:
30 049
YOM:
1947
Flight number:
SU006
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
20
Pax fatalities:
Other fatalities:
Total fatalities:
7
Aircraft flight hours:
166
Circumstances:
Fifteen minutes after takeoff from Krasnoyarsk-Severniy Airport, the oil pressure on the left engine dropped. The crew shut down the engine, feathered the propeller and decided to return to Krasnoyarsk for a safe landing. On final approach, the speed was too high and the crew encountered problems to lower the undercarriage so the captain elected to make a go around. Few minutes later, during a second attempt to land, while at a height of some 50 meters, the aircraft stalled and crashed few hundred yards short of the runway threshold. Eighteen occupants were injured while seven others, among them four crew members, were killed.

Crash of an Ilyushin DB-3F in Sverdlovsk: 1 killed

Date & Time: Jan 4, 1942 at 1330 LT
Type of aircraft:
Operator:
Registration:
CCCP-A645
Survivors:
Yes
Schedule:
Omsk - Sverdlovsk
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The airplane departed Omsk Airport with a delay of two hours. En route, weather conditions deteriorated and the visibility was poor due to snow falls. Despite the situation, the crew decided to continued to Sverdlovsk. Approaching the destination, the crew were unable to locate the airport and in low visibility, attempted to land when the airplane impacted a hill, bounced and crashed 70 metres further. The wreckage was found nearby the Verkh-Isetskiy Lake, west of Sverdlovsk. All three crew members were injured and the mechanic later died from injuries sustained.
Probable cause:
Controlled flight into terrain after the decision of the crew to continue in poor visibility due to adverse weather conditions.

Crash of a Polikarpov PR-5 in Petropavlovsk: 1 killed

Date & Time: Mar 8, 1941 at 1615 LT
Type of aircraft:
Operator:
Registration:
CCCP-L3387
Flight Type:
Survivors:
No
Schedule:
Omsk – Petropavlovsk
MSN:
281
YOM:
1940
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The airplane departed Omsk Airport at 1445LT on a cargo flight to Petropavlovsk, Kazakhstan, carrying one pilot and a load of 346 kg of various goods. On final approach to Petropavlovsk Airport, the airplane descended too low to the right (about 30-40 metres) and the pilot initiated a turn to the left when he lost control of the airplane that crashed 950 metres from the 'T'. The aircraft was destroyed and the pilot was killed. At the time of the accident, the visibility was estimated to be above 10 km with light snow.
Probable cause:
The accident occurred during a steep turn caused by poor piloting techniques.

Crash of a Polikarpov PR-5 in Suslovo

Date & Time: Jan 16, 1941
Type of aircraft:
Operator:
Registration:
CCCP-F
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Omsk - Ulan-Ude
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The pilot departed the factory in Omsk to deliver the airplane in Ulan-Ude. En route, the engine failed and the pilot attempted an emergency landing when the aircraft crashed in a prairie located in Suslovo. The pilot was unhurt and the airplane was damaged beyond repair.
Probable cause:
Engine failure in flight.

Crash of a GVF PS-84 in Novosibirsk: 18 killed

Date & Time: Aug 7, 1940
Type of aircraft:
Operator:
Registration:
CCCP-L3409
Survivors:
Yes
Schedule:
Moscow – Omsk – Novosibirsk – Irkutsk
MSN:
02 4 6
YOM:
1940
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
17
Pax fatalities:
Other fatalities:
Total fatalities:
18
Circumstances:
The airplane departed Moscow on a flight to Irkutsk with intermediate stops in Omsk and Novosibirsk. On approach to Novosibirsk Airport, the crew encountered unfavorable weather conditions when the aircraft crashed. Three passengers were rescued while 18 other occupants were killed.