On 11 July 2011, Angara Airlines Flight 9007, an Antonov An-24 turboprop passenger aircraft on a domestic service from Tomsk to Surgut, Russia, ditched into the Ob River, after suffering an engine fire.

[2] At around 11:36, while the aircraft was cruising at 6,000 metres (20,000 ft), a magnetic chip detector signalled the presence of particles in the port (left) engine's oil system.

[3] The captain decided to continue the flight, but 8 minutes later a burning smell filled the cockpit and the fire alarm on the port engine briefly activated.

Due to the shallow water and the presence of undulations in the river bed, the aircraft was severely damaged in the ditching.

The report also cited as contributing factor the captain's apparent reluctance to shut down the affected engine despite various abnormal indications, which allowed the fire to develop and become inextinguishable.