Crash of a Tupolev PS-7 2M-17 near Ust-Kut: 1 killed
Date & Time:
Jun 30, 1940 at 1210 LT
Registration:
CCCP-L2154
Survivors:
Yes
Schedule:
Irkutsk – Balagansk – Ust-Kut – Yakutsk
MSN:
12627
YOM:
1937
Crew on board:
2
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
1303
Circumstances:
The airplane departed Irkutsk on a flight to Yakutsk with intermediate stops in Balagansk and Ust-Kut, carrying three passengers, two crew members, 240 kg of bagages and 727 kg of mail. Approaching Ust-Kut, the engine lost power and started vibrating. The pilot shut it down and attempted an emergency landing when the airplane clipped trees and crashed in a wooded area located 50 km south of Ust-Kut. The captain was killed while four other occupants were injured. The following day, they walked through the taïga and found rescue.
Probable cause:
It was determined that the engine failed in flight due to a fuel issue that was caused either by:
- the fuel valve was closed;
- a foreign object obstructed the fuel line;
_ the fuel pump failed.
- the fuel valve was closed;
- a foreign object obstructed the fuel line;
_ the fuel pump failed.