Accident Yakovlev Yak-40 CCCP-87437,
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Date:Saturday 7 October 1978
Type:Silhouette image of generic YK40 model; specific model in this crash may look slightly different    
Yakovlev Yak-40
Owner/operator:Aeroflot, Kazakstan Civil Aviation Directorate
Registration: CCCP-87437
MSN: 9431335
Year of manufacture:1974
Total airframe hrs:6291 hours
Cycles:5110 flights
Engine model:Ivchenko AI-25
Fatalities:Fatalities: 38 / Occupants: 38
Aircraft damage: Destroyed, written off
Location:7,5 km SW of Sverdlovsk-Koltsovo Airport (SVX) -   Russia
Phase: Initial climb
Nature:Passenger - Scheduled
Departure airport:Sverdlovsk-Koltsovo Airport (SVX/USSS)
Destination airport:Kostanay-Narimanovka Airport (KSN/UAUU)
The Yak-40 operated on a domestic flight from Sverdlovsk (now named Yekaterinburg) to Kostanay and Dzhambul. The aircraft took off at 19:48:30 hours local time in darkness.
Throughout the flight, the engine thrust was insufficient. The aircraft climbed at a very shallow angle. At 19:50:25, at an altitude of just 100 m, the flight crew reported the failure of engine no.1. The flight crew turned left in an effort to return to the airport.
The aircraft struck trees on a hillside, 86 m above airfield elevation, and crashed.

It was determined that the crew failed to select engine anti-ice before takeoff. Additionally the maximum take-off weight of the aircraft was exceeded by 419 kg.

Soviet Transports


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