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Last updated: 18 September 2021
Status:Definitief
Datum:vrijdag 19 juni 2015
Tijd:16:53
Type:Silhouette image of generic AN2 model; specific model in this crash may look slightly different
Antonov An-2R
Luchtvaartmaatschappij:Vostok Aviakompania
Registratie: RA-40646
Constructienummer: 1G213-53
Bouwjaar: 1985
Aantal vlieguren:5824
Aantal vluchten:9346
Motoren: 1 Shvetsov ASh-62IR
Bemanning:slachtoffers: 0 / inzittenden: 2
Passagiers:slachtoffers: 0 / inzittenden: 2
Totaal:slachtoffers: 0 / inzittenden: 4
Schade: Groot
Gevolgen: Written off (damaged beyond repair)
Plaats:nabij Kezhma, Kezhemsk district, Krasnoyarsk Territory (   Rusland)
Fase: Kruisvlucht (ENR)
Soort vlucht:Onderzoek
Vliegveld van vertrek:Kodinsk, Rusland
Vliegveld van aankomst:Kezhma (UNKE), Rusland
Beschrijving:
An Antonov 2R sustained substantial damage when it force landed in a forest in the Kezhemsk District, Krasnoyarsk Territory, Russia.
The aircraft was carrying out aerial surveillance in connection with fires in the Krasnoyarsk Territory when the engine failed.

Probable Cause:

The accident of the An-2 RA-40646 aircraft occurred at the time of the forced landing on the forest. Its necessity was caused by spontaneous shutdown of the engine in flight as a result of destruction of bronze pouring of the bushing of 62.06.02 crank head of the main connecting rod of the crank mechanism.
Most likely, the destruction of the bronze casting of the bushing is caused by a manufacturing defect, which consists in the lack of adhesion of bronze to the steel base on the part of its surface.

Accident investigation:
cover
Investigating agency: MAK
Status: Investigation completed
Duration: 1 year and 6 months
Accident number: final report
Download report: Final report

Bronnen:
» MAK
» Russian Emergency Situations Ministry
» West Siberian Investigation Department of Transport of the Investigative Committee of the Russian Federation


Foto's

photo of Antonov-An-2R-RA-40646
accident date: 19-06-2015
type: Antonov An-2R
registration: RA-40646
photo of Antonov-An-2R-RA-40646
accident date: 19-06-2015
type: Antonov An-2R
registration: RA-40646
photo of Antonov-An-2R-RA-40646
accident date: 19-06-2015
type: Antonov An-2R
registration: RA-40646
 
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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