Date & Time: Sep 22, 1971 at 1635 LT
Type of aircraft:
Scheduled Revenue Flight
Polotsk – Chelyabinsk
Crew on board:
Pax on board:
Aircraft flight hours:
The single engine airplane departed Polotsk Airport at 1623LT on a flight to Chelyabinsk, carrying 12 passengers (mining workers) and a crew of two. 12 minutes later, while cruising at an altitude of 300 meters in good weather conditions, the airplane went out of control and crashed in a steppe located 35 km north of Polotsk. The aircraft was totally destroyed and all 14 occupants were killed.
It was determined that none of the 12 passengers were attached and some of them were standing in the rear compartment of the aircraft, prohibited to passengers, the access door to be locked. Various analysis revealed that all passengers were intoxicated at the time of the accident and that they were probably moving in the cabin without the consent of the crew. This situation likely modified the CofG, causing the airplane to become uncontrollable.