YAK Service Flight 9633Wednesday September 7, 2011
The plane failed to climb after takeoff and crashed into an antenna outside the airport perimeter and came to rest in the Volga River, 1km from the runway. The plane carried the entire Lokomotiv Yaroslavl ice hockey team. Pilot error. Both pilots had experience on the Yak-40 but were assigned to switch between types , contrary to proper practice. They apparently had never learned the correct position for their feet on takeoff. In the Yak-42, and like virtually all other existing Russian and Western planes, a pilot steers the aircraft by pressing the lower part of pedals and activates the brakes by pressing their upper part.But instead of putting his heels on the cockpit floor as required, One pilot left his feet resting on the pedals, as correct for the
Yak-40. This applied the brakes, causing a downward pitch force that prevented the plane from rotating to take off. They made the fatal mistake of failing to abort the takeoff, but kept applying more upward
pitch with the result that when the plane finally left the ground and the downward pitch force stopped, it went into a stall within seconds.