Russian plane crash 'caused by pilot error on speed data'

The crash of a Russian passenger plane that killed all 71 people on board may have been caused by the pilots' failure to activate heating for pressure measurement equipment, resulting in flawed speed data, investigators have said.

The Interstate Aviation Committee said after studying the plane's flight data recorder that Sunday's crash occurred after the pilots saw varying data on the two air speed indicators.

Emergency personnel works at the scene of an AN-148 plane crash in Stepanovskoye village, about 40 kilometers (25 miles) from the Domodedovo airport, Russia

The flawed indication came because the pilots failed to turn on the heating unit for pressure measurement equipment before take-off.

The pilots put the An-148 on autopilot after taking off from Moscow's Domodedovo Airport but took manual controls back when they saw clashing speed data.

The plane plummeted into a snowy field six minutes after take-off, killing all 65 passengers and six crew.

- PA

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