Country
Russia

Crash of a Putilov Stal-2 in Slobodshikovo: 3 killed

Date & Time: Mar 10, 1935 at 1405 LT
Type of aircraft:
Putilov Stal-2
Operator:
Registration:
CCCP-L1170
Flight Phase:
Flight
Flight Type:
Scheduled Revenue Flight
Survivors:
No
Site:
Plain, Valley
Schedule:
Arkhangelsk – Kotlas – Syktyvkar
MSN:
170
YOM:
1934
Location:
Slobodshikovo
Arkhangelsk oblast
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
The airplane was completing a schedule service from Arkhangelsk to Syktyvkar with an intermediate stop in Kotlas, carrying one passenger and two crew members. The crew departed Kotlas at 1240LT on the final leg to Syktyvkar. Approaching the village of Korovinskaya, the pilot encountered sudden heavy snow falls for a period of time of about 15-20 minutes. The visibility was very poor and the pilot decided not to return and continued in such conditions. Few minutes later, while cruising in a flat attitude in white conditions, the airplane impacted ground and crashed one km southeast of Slobodshikovo. The aircraft was destroyed and all three occupants were killed.
Probable cause:
Controlled flight into terrain following the pilot's decision to continue the flight at an insufficient altitude in reduced visibility due to heavy snow falls while it would have been better to fly back to Kotlas.

Crash of a Putilov Stal-2 near Ak-Su: 5 killed

Date & Time: Apr 26, 1934 at 1400 LT
Type of aircraft:
Putilov Stal-2
Operator:
Registration:
CCCP-L1125
Flight Phase:
Flight
Flight Type:
Scheduled Revenue Flight
Survivors:
No
Site:
Mountains
MSN:
125
YOM:
1934
Location:
Ak-Su
Khatlon Province
Country:
Tajikistan
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
5
Circumstances:
The single engine airplane departed Stalinabad with three passengers and two crew members on board. The crew did not receive any weather bulletin prior to departure. After takeoff, the airplane entered clouds. While cruising at an altitude of about 1,000 metres, the airplane entered an uncontrolled descent and crashed near the village of Ak-Su. The aircraft was totally destroyed and all five occupants were killed.
Probable cause:
Loss of control following the destruction of individual parts of the aircraft due to overload.

Crash of a Putilov Stal-2 in Zalivnaya: 2 killed

Date & Time: Mar 11, 1934 at 1430 LT
Type of aircraft:
Putilov Stal-2
Operator:
Registration:
CCCP-L1127
Flight Phase:
Flight
Flight Type:
Delivery
Survivors:
No
Site:
Plain, Valley
Schedule:
Moscow – Penza – Samara – Orenburg – Tashkent
MSN:
127
YOM:
1934
Location:
Zalivnaya
Samara oblast
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Aircraft flight hours:
12
Aircraft flight cycles:
10
Circumstances:
The aircraft departed Moscow on February 19 to be delivered to its new base in Tashkent. Intermediate stops were scheduled in Penza, Samara and Orenburg. On the leg from Samara to Orenburg, after a trip of about 205 km, the crew encountered engine problems and made an emergency landing. Due to technical problems, poor weather conditions and awaiting fuel from Orenburg, the crew was stuck for 18 days. Following several engine tests and after all defaults were eliminated, the crew took off on March 11 back to Samara. While flying at a height of 250-300 metres, the engine failed again. The pilot attempted an emergency landing and initiated a turn when the aircraft stalled and crashed in a wooded area located 3 km from the Zalivnaya Station. The aircraft was totally destroyed and both crew members were killed.
Probable cause:
Loss of control consecutive to a stall during a turn completed at low altitude following an engine failure in a difficult environment.

Crash of a Putilov Stal-2 into the Lake Baikal: 1 killed

Date & Time: Jan 12, 1933
Type of aircraft:
Putilov Stal-2
Operator:
Registration:
URSS-7
Flight Phase:
Flight
Flight Type:
Test
Survivors:
Yes
Site:
Lake, Sea, Ocean, River
Schedule:
Moscow – Petropavlovsk-Kamchatsky
Location:
Lake Baikal
All Russia
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The crew departed Moscow on a test flight to Petropavlovsk-Kamchatsky. En route, weather conditions worsened with heavy snow falls and icing conditions. The aircraft lost altitude and crashed into the Lake Baikal. One occupant survived and the second was killed.
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