Crash of a Putilov Stal-3 in Verkhnyaya Kolybelka: 2 killed

Date & Time: Mar 23, 1941 at 1430 LT
Type of aircraft:
Putilov Stal-3
Operator:
Registration:
CCCP-L1243
Flight Phase:
Flight
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Plain, Valley
Schedule:
Voronezh - Moscow
MSN:
243
YOM:
1936
Location:
Verkhnyaya Kolybelka
Lipetsk oblast
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
The single engine airplane departed Voronezh Airport at 1355LT on a schedule service to Moscow, carrying four passengers (three adults and one child), two crew members and 104 kg of cargo. About half an hour later, it crashed in unknown circumstances in a pasture located 1,500 metres west of the village of Verkhnyaya Kolybelka. Both crew members were killed and all four passengers were injured, one seriously.

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

Date & Time: May 16, 1940 at 1755 LT
Type of aircraft:
Tupolev ANT-40 (PS-40/PS-41)
Operator:
Registration:
CCCP-T3518
Flight Phase:
Flight
Flight Type:
Postal (mail)
Survivors:
No
Site:
Plain, Valley
Schedule:
Stalingrad – Moscou
MSN:
11/214
YOM:
1938
Location:
Voronezh
Voronezh oblast
Country:
Russia
Region:
Asia
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 Putilov Stal-3 in Nizhne Kazache: 1 killed

Date & Time: Jul 10, 1937 at 1047 LT
Type of aircraft:
Putilov Stal-3
Operator:
Registration:
CCCP-L1232
Flight Phase:
Flight
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Plain, Valley
Schedule:
Moscow – Yelets – Voronezh – Astrakhan
MSN:
232
YOM:
1936
Location:
Nizhnee Kazache
Lipetsk oblast
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
489
Circumstances:
The airplane departed Moscow on a flight to Astrakhan with intermediate stops in Yelets and Voronezh, carrying three passengers, two crew members and a load of 319 kg of mail. About 15 minutes after takeoff from Yelets Airport, while cruising at an altitude of 660 metres, the engine started to fail. The captain reduced his altitude and attempted an emergency landing in a rye field when the airplane impacted an embankment, lost its undercarriage and crashed. All five occupants were injured, the mechanic seriously. He died the next day from his injuries.
Probable cause:
The engine failure resulted from the destruction of the connecting rods on cylinders n°2 and 6 due to the fact that the fuel used had a too low octane rate and that the oil was not compliant.
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