On February 9, an Aeroflot Tupolev Tu-104, operating as Flight 3739, took off from Irkutsk Airport, Russia, for a scheduled domestic flight. Shortly after liftoff, the aircraft encountered difficulties that prompted the pilots to attempt an emergency return. Witnesses reported that the plane struggled to gain altitude and ultimately crashed in a nearby area shortly after takeoff, resulting in a catastrophic loss of life. In total, 24 people onboard perished in the incident, leading to a series of investigations into the factors contributing to the accident. The event raised serious concerns about aviation safety, particularly as it involved a major airline operating within the Soviet Union, highlighting the urgent need for improvements to flight safety protocols and aircraft maintenance practices.

The investigation focused on technical aspects of the Tu-104, including mechanical failures and pilot error as potential causes. Following the tragedy, the Soviet authorities sought to reassure the public of the safety of domestic air travel, reassuring that comprehensive reviews of all Aeroflot aircraft would be undertaken. Meanwhile, families of the victims were offered compensation, and the accident became a part of the broader discussion on the pressures faced by airlines to maintain schedules and operational efficiency.

In the wake of the crash, the Soviet Union's national airline, Aeroflot, faced increased scrutiny. Flight safety regulations were reviewed, leading to enhancements in training and maintenance standards. The Tu-104, a significant aircraft in the Soviet fleet, also came under the microscope, as reports circulated regarding its reliability and design lethargy. While the Tu-104 would continue to be in service for some time, this incident is remembered as a pivotal moment that galvanized changes and reflective assessments within the aviation community regarding safety practices and operational conduct.