ASN Aircraft accident Yakovlev Yak-40K RA-88257 Khanty-Mansiysk Airport (HMA)
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Status:Information verified through authorities or other official sources.
Date:Saturday 26 October 1996
Type:Silhouette image of generic YK40 model; specific model in this crash may look slightly different
Yakovlev Yak-40K
Registration: RA-88257
MSN: 9711252
First flight: 1977
Total airframe hrs:21765
Engines: 3 Ivchenko AI-25
Crew:Fatalities: 3 / Occupants: 4
Passengers:Fatalities: 2 / Occupants: 33
Total:Fatalities: 5 / Occupants: 37
Aircraft damage: Damaged beyond repair
Location:Khanty-Mansiysk Airport (HMA) (   Russia)
Phase: Landing (LDG)
Nature:Domestic Scheduled Passenger
Departure airport:Tyumen Airport (TJM/USTR), Russia
Destination airport:Khanty-Mansiysk Airport (HMA/USHH), Russia
Weather conditions were bad: heavy snowstorm, 1400 m visibility and a 200 m cloud base as the Yak-40 approached the airport of Khanty-Mansiysk. On finals the pilots mistook the helicopter parking area perimeter lights for the runway approach lights. On landing the airplane collided consecutively with TyumenAviaTrans Mi-8Ts RA-22313, RA-25144 and RA-25939.

Probable Cause:

1) lack of information from the crew about the deterioration of visibility below the aerodrome minimum during the landing approach;
2) continuation of the landing approach in conditions of weather change below the aerodrome visibility minimum;
3) turning on the lighting of the heliport, which significantly exceeded the power of the runway lights, in conditions of limited visibility (snow charge), which provoked the crew to erroneously perceive it as the runway lights in the absence of the possibility of effective control over the movement of the aircraft after the flight over the OPRS beacon.

Runway excursion

» Soviet Transports
» Flight International
» ICAO Adrep Summary 2/97 (#93)
» Scramble 211


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This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Tyumen Airport to Khanty-Mansiysk Airport as the crow flies is 474 km (296 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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