Crash of a Tupolev PS-41bis in Oktyabrskaya: 1 killed

Date & Time: Feb 13, 1941 at 1505 LT
Operator:
Registration:
CCCP-L3505
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Leningrad - Moscow
MSN:
2/300
YOM:
1940
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
260
Circumstances:
Prior to takeoff from Leningrad, the pilot was informed about weather conditions and instructed to fly not above 600 metres. The airplane departed Leningrad Airport at 1320LT on a mail flight to Moscow with two crew members on board. Shortly after takeoff, the pilot was forced to return due to an oil leak on the right tank. After repairs, the airplane took off again at 1435LT. The pilot continued at an altitude of 500-600 metres when the airplane entered clouds. Due to turbulence, the pilot decided to climb until 2,500 metres then 3,000 metres. Later, while descending, the airplane' speed increased from 270 km/h to 400 km/h and it became unstable. The flight engineer has been shaken from left to right and tried to get a radio contact with the pilot. As this was unsuccessful, he abandoned the airplane and bailed out. He was later found uninjured. The airplane continued its descent and the pilot also attempted to bail out but this was too late. His parachute failed to open in time and he was killed. The airplane crashed in a wooded area located in Oktyabrskaya, some 100 km east of Leningrad and was destroyed.
Probable cause:
Lack of discipline on part of the pilot who disregarded the instructions related to the max altitude to respect and his decision to fly against the published procedures.

Crash of a Tupolev PS-41 in Kuybyshev

Date & Time: Feb 6, 1941
Operator:
Registration:
CCCP-L3522
Flight Type:
Survivors:
Yes
Schedule:
Moscow – Kuybyshev – Almaty
MSN:
15/234
YOM:
1939
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew was completing a mail flight from Moscow to Almaty. En route, weather deteriorated with icing conditions, causing the windshield to be covered by ice and frost. To land at Kuybyshev Airport, the pilot was forced to put his head out of the cockpit, but doing so, he missed the runway. After touchdown, the airplane skidded off runway and came to rest. There were no casualties but the aircraft was destroyed.

Crash of a Tupolev PS-41 near Voronezh: 3 killed

Date & Time: May 16, 1940 at 1755 LT
Operator:
Registration:
CCCP-T3518
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Stalingrad – Moscou
MSN:
11/214
YOM:
1938
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
3
Aircraft flight hours:
168
Circumstances:
The airplane departed Stalingrad at 1647LT on a mail flight to Moscow, carrying three crew members and a load of 113 kg of mail. After takeoff, the airplane entered clouds and continued his course to the northwest. After flying a distance of about 350 km, while cruising at an altitude of 4,000 metres in clouds, the airplane entered an uncontrolled descent and crashed in a field at a speed of 750-800 km/h. All three occupants were killed.
Probable cause:
Due to the high degree of destruction, investigations were unable to determine the exact cause of the accident. Nevertheless, it is believed that the loss of control was probably the consequence of icing while cruising at high altitude in clouds, causing a malfunction of the instruments.

Crash of a Tupolev PS-41 in Sinegubovo: 3 killed

Date & Time: Apr 26, 1940 at 0708 LT
Operator:
Registration:
CCCP-L3529
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Moscow – Kharkiv – Mineralnye Vody
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
The airplane departed Moscow at 0605LT on a cargo flight to Mineralnye Vody with an intermediate stop in Kharkiv, carrying three crew members. The pilot continued at an altitude of 300 metres and at a speed of 290 km/h when weather conditions deteriorated with low clouds and rain falls. Without any radio contact with the ground to obtain a weather briefing, the crew continued to the south and passed over Tula at 0653LT. Shortly later, the crew encountered foggy conditions and was unable to locate his position so the captain decided to return. Flying to low in fog, the airplane impacted trees at a speed of 220 km/h and crashed into a ravine. All three crew members were killed.
Probable cause:
Controlled flight into terrain after the decision of the pilot to continue in poor visibility. His decision to return was taken too late and he was flying at an unsafe altitude. At the time of the accident, one of the engine was not functioning for reason that could not be determined, the propeller was windmilling at impact. Nevertheless, this was not considered was a contributing factor.

Crash of a Putilov Stal-3 in Strogino: 6 killed

Date & Time: Jun 22, 1938 at 1500 LT
Type of aircraft:
Operator:
Registration:
CCCP-L1206
Flight Type:
Survivors:
No
Schedule:
Moscow - Moscow
MSN:
206
YOM:
1935
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
453
Circumstances:
The single engine airplane departed Moscow-Tushino on a local post maintenance test flight. On board were one pilot, one technician, one engineer, one guard and two firefighters from the airport. After 15 minutes of flight, the pilot initiated the approach. As he was not properly aligned, he raised the flaps but did not increase the engine power, causing the aircraft to glide the to 'slid' to the left and to descend. From a height of about 100 metres, the aircraft stalled and crashed in a field. All six occupants were killed.
Probable cause:
It was determined that the accident was the consequence of a wrong approach configuration on part of the pilot who failed to increase engine power to initiate a go around procedure.

Crash of a Tupolev ANT-9 in Novosibirsk

Date & Time: May 15, 1938
Type of aircraft:
Operator:
Registration:
CCCP-L125
Flight Phase:
Survivors:
Yes
Schedule:
Novosibirsk – Moscow
MSN:
126
YOM:
1931
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After takeoff from Novosibirsk Airport, while climbing to an altitude of 850 metres, the crew realized that the water temperature on the left engine was about 100° C. The pilot decided to attempt an emergency landing and reduced his altitude. At a height of about 200 metres, the mechanic made a mistake, positioning the elevator in a wrong angle. This caused the aircraft to nose up, to stall and eventually to crash. All occupants evacuated with minor injuries and the aircraft was damaged beyond repair.
Probable cause:
It was determined that the left engine overheated because of a loss of water in the cooling system, this following the loss of the collector's cap. This resulted in a stall at low altitude due to the fact that the aircraft's speed was insufficient.

Crash of a Polikarpov P-5 in Tambov

Date & Time: Jan 7, 1938
Type of aircraft:
Operator:
Registration:
CCCP-E41
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Tashkent – Penza – Moscow
MSN:
8079
YOM:
1934
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The single engine airplane was completing a special flight from Tashkent to Moscow with an intermediate stop in Penza, carrying one passenger (a mechanic) and one pilot. Weather conditions at takeoff from Penza were excellent. About 40 minutes into the flight, these conditions deteriorated with fog. The pilot elected to gain height and climbed to the altitude of 1,400 metres when he encountered icing conditions. He decided to returned to Penza and initiated a 180 turn in the clouds when he lost control of the airplane that entered a dive. At a height of 200 metres, he regained control but lost it again at a height of 100 metres before the airplane crashed near Tambov, west of Penza. Both occupants were injured.
Probable cause:
Loss of control in clouds after the pilot suffered a spatial disorientation.
The following contributing factors were identified:
- The information transmitted to the pilot concerning weather conditions en route were inaccurate,
- Icing conditions,
- The pilot was not sufficiently trained to fly in IFR conditions.

Crash of a Polikarpov P-5 in Drachevka

Date & Time: Oct 10, 1937
Type of aircraft:
Operator:
Registration:
CCCP-L1538
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Kharkiv – Moscow
MSN:
8064
YOM:
1934
Country:
Region:
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The aircraft departed Kharkiv on a mail flight to Moscow, carrying one pilot and a load of 400 kg of mail. About 50 minutes into the flight, the engine started to vibrate. A smell of fuel spread in the cabin and the engine caught fire. The pilot bailed out and abandoned the aircraft that dove into the ground and crashed in an open field. The pilot was burned to his legs and the aircraft was destroyed.
Probable cause:
It was determined that the engine caught fire after a fuel line ruptured in flight, causing the fuel to spill and to ignite while in contact with high temperature components. The line in question had already been repaired but the hose that had been placed to seal the line failed because it was corroded by the fuel.

Crash of a Bolkhovitinov DB-A in Russia: 6 killed

Date & Time: Aug 12, 1937
Type of aircraft:
Operator:
Registration:
URSS-N209
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Moscow – Fairbanks – Chicago – New York
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
The crew was performing a transpolar flight from Moscow to New York with intermediate stops in Fairbanks and Chicago. While flying probably over the north part of Siberia, maybe over the Arctic Ocean, the aircraft disappeared after all radio communications ceased. Important SAR operations were initiated but were eventually suspended few weeks later as no trace of the aircraft nor the six crew members was found. Among the six aviators was the famous Soviet aviation pioneer Sigismond Levanevsky.
Crew:
Sigismond Levanevsky, captain,
Nikolai Kastanayev, second pilot,
Nikolai Galkovsky, radio operator,
Grigory Pobezhimov, flight engineer,
Nikolai Godovikov, flight engineer,
Viktor Levchenko, navigator.
Probable cause:
According to Soviet Authorities, weather information transmitted to the crew were inaccurate and did not reflect the truth.

Crash of a Douglas DC-2-152 in Bistriţa: 6 killed

Date & Time: Aug 6, 1937
Type of aircraft:
Operator:
Registration:
URSS-M25
Flight Phase:
Survivors:
No
Schedule:
Bucharest – Moscow
MSN:
1413
YOM:
1935
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
6
Circumstances:
En route from Bucharest to Moscow, the aircraft suffered an in-flight fire that quickly spread in the cabin. Control was lost and the airplane crashed in an open field located near Bistriţa, Transylvania. All six occupants were killed.
Probable cause:
It is believed that a passenger lit a cigarette in the rear toilets where fuel vapors accumulated, causing a sudden and violent fire.