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. Last Updated: 07/27/2016

Controls at Fault

KHABAROVSK, Far East () -- Faulty controls caused the crash of a Tu-154 airliner that killed 97 people in Russia's Far East in December, forcing the plane to roll uncontrollably, aviation officials said Friday.

The committee investigating the accident presented results of its eight-month analysis to Prime Minister Viktor Chernomyrdin on Friday, Interfax reported.

After fitting together 1,622 fragments of the shattered aircraft, investigators found faults in the plane's lateral control, which caused the plane to lean to the left. They also determined that during earlier repairs of the plane, a test pilot had noted its tendency to lean, but the problem was not remedied, Interfax said.

When the Tu-154 went into a sudden spin at 10,600 meters Dec. 7, the crew tried to control it, but the plane responded "inadequately," Viktor Ishayev, head of the Khabarovsk regional administration, said Friday.