Incident
On a flight from Stalingrad to Moscow-Vnukovo, an aircraft carrying a crew of five and 20 passengers, including 10 Norwegian women, was cruising at an altitude of 2,200 meters in clouds when the crew reported a right engine failure to air traffic control. Permission was obtained to divert to Voronezh Airport for an emergency landing.
Sequence of Events
Shortly after the failure report, the right engine caught fire. While descending to an altitude of 900 meters, the right wing failed. The aircraft then dove into the ground and crashed approximately 4 kilometers from the runway threshold. The airplane disintegrated on impact, and all 25 occupants were killed.
Cause
Investigations determined that the right engine was brand new and had accumulated only 250 hours of operation. Despite this, the engine already suffered from cracks and defaults. A fuel leak occurred on the right engine en route. Due to a lack of oil, the engine overheated, caught fire, and eventually exploded. The fire spread to the engine nacelle and then to the right wing, which broke off a few minutes later.