No fatalities

Training aircraft sustained heavy damage due to flap malfunction (CCCP-41852)

Russia, RussiaLanding (descent or approach)

On April 4, 1962, an Ilyushin II-14 (registration CCCP-41852) operated by Aeroflot - Russian International Airlines was involved in an aviation accident near Russia, Russia during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: The failure of the left flap to extend during the landing phase led to significant structural damage upon impact. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

A training flight resulted in significant damage to an aircraft after a failure in the left flap deployment prevented a normal landing.

What happened

During a scheduled training mission, an aircraft experienced a mechanical failure involving its flight control surfaces. As the aircraft approached for landing, the left flap failed to extend as required by the crew. This malfunction disrupted the intended aerodynamic configuration during the final approach phase.

As a result of the asymmetric flap deployment, the aircraft sustained severe damage upon touchdown. The incident occurred while the aircraft was being operated for instructional purposes.

Findings

Following the accident, an assessment of the airframe was conducted. It was determined that the mechanical issue involving the left flap remained unresolved, and the aircraft was not repaired following the damage sustained during the landing sequence.

Probable cause

The failure of the left flap to extend during the landing phase led to significant structural damage upon impact.