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Last updated: 18 August 2019
Statuts:Enquête Officielle
Date:mardi 7 novembre 2017
Heure:08:50
Type/Sous-type:Silhouette image of generic AN2 model; specific model in this crash may look slightly different
Antonov An-2
Compagnie:DalTransAero
Immatriculation: RA-02305
Numéro de série: 1G240-07
Année de Fabrication: 1990
Heures de vol:2483
Cycles:8807
Moteurs: 1 Shvetsov ASh-62IR
Equipage:victimes: 1 / à bord: 2
Passagers:victimes: 0 / à bord: 0
Total:victimes: 1 / à bord: 2
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Ekimchan, Amur region (   Fédération de Russie)
Phase de vol: En approche (APR)
Nature:Cargo
Aéroport de départ:Ekimchan (UHBP), Fédération de Russie
Aéroport de destination:Udskoye Airstrip, Fédération de Russie
Détails:
An Antonov An-2 impacted wooded terrain next to a residence close to Ekimchan Airstrip, Russia. The aircraft was consumed by fire. One of the two pilots sustained fatal injuries.
The aircraft had departed Ekimchan and was en route at an altitude of 1800 meters when the crew noticed a strong smell of gasoline in the cockpit. They decided to return to the departure aerodrome. During descent, the engine began running rough. Sparks and flames were observed. When approaching the airstrip at Ekimchan, the engine began losing power. At an altitude of about 50 meters, the engine stopped. Because of the presence of buildings in front of the aircraft, the crew executed the turn to the left. The aircraft impacted a wooded area, near the end of the runway.

Probable Cause:

Conclusion (translated from Russian):
The crash of An-2 RA-02305 aircraft occurred during the forced landing.
The necessity of the forced landing was caused by the engine stopping in flight due to the destruction of the cylinder head No.1 of the ASH62-IR engine No.K16509153. The destruction of cylinder head No. 1 is of fatigue nature and occurred due to exhaustion of fatigue life of the cylinder head material and reaching its limit state.
Most likely, during the last repair of the engine the crack in the cylinder head was present, but was not through and was not revealed during the inspection.
The most likely contributing factor to stopping the engine in flight was the impoverishment of the fuel-air mixture due to icing of the BAC filter mesh and the presence of a rubber plug on the filter flange of the corrector.

Accident investigation:
cover
Investigating agency: MAK
Status: Investigation completed
Duration: 1 year and 9 months
Accident number: Final report
Download report: Final report

Sources:
» Tass.ru
» MAK
» EMERCOM Russia


Photos

photo of Antonov-An-2-RA-02305
accident date: 07-11-2017
type: Antonov An-2
registration: RA-02305
photo of Antonov-An-2-RA-02305
accident date: 07-11-2017
type: Antonov An-2
registration: RA-02305
 

Video, social media

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Ekimchan et Udskoye Airstrip est de 186 km (116 miles).
Accident location: Exact; deduced from official accident report.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
languages: languages

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