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Crash of a Kalinin K-5 in Moscow: 2 killed

Date & Time: Feb 13, 1933 at 0855 LT
Type of aircraft:
Operator:
Registration:
CCCP-L455
Flight Type:
Survivors:
No
Schedule:
Moscow - Kharkiv
MSN:
210
YOM:
1932
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Aircraft flight hours:
339
Circumstances:
The crew departed Moscow at 0815LT on a mail flight to Kharkiv. Approaching Podolsk, weather conditions deteriorated and the captain decided to return to Moscow. But on approach, weather conditions were also poor in Moscow and the visibility was very limited due to fog. On approach, at a height of about 110-120 metres, the airplane collided with an antenna, causing the right wing to be partially torn off. Out of control, the aircraft descended and crashed 65 metres further. Both crew members were killed.
Probable cause:
The immediate cause of the accident was the strong deterioration of the weather conditions in Moscow. The aircraft was flying low with stabilizers in a neutral position, confirming it was apparently in a flat attitude. There were no radio in the aircraft and the antenna was not equipped with lights, which was considered as a contributing factor.

Crash of a Kalinin K-5 in Göyçay: 4 killed

Date & Time: Feb 8, 1933 at 0930 LT
Type of aircraft:
Operator:
Registration:
CCCP-L481
Flight Phase:
Survivors:
Yes
Schedule:
Baku - Tiflis
MSN:
216
YOM:
1932
Location:
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
4
Aircraft flight hours:
183
Circumstances:
The aircraft departed Baku on a regular service to Tiflis (Tbilisi), carrying three passengers and two crew members. En route to Ganzhda and Yevlakh, the pilot encountered poor visibility due to foggy conditions. He reduced his altitude in an attempt to maintain a visual contact with the ground and followed the railway line. Approaching Göyçay, at a height below 30 metres, he realized he was facing trees so he initiated a sharp turn to the right when the aircraft impacted poplar trees. The right wing was partially torn off and the aircraft crashed. A female passenger was injured while four other occupants were killed.
Probable cause:
Overconfidence and lack of discipline on part of the captain who decided to continue the flight at a too low and unsafe altitude in poor visibility due to foggy conditions.