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Agricultural Aircraft Collision with Terrain in Kozlovets (LZ-1178)

Kozlovets, BulgariaFlight

On April 11, 2006, an Antonov AN-2 (registration LZ-1178) operated by Kapoli Air was involved in an aviation accident near Kozlovets, Bulgaria in flight. 2 people were killed. Investigators recorded the probable cause as: The main cause was the aircraft commander's demonstrated self-sufficiency and lack of self-discipline, leading to violations of flight rules during aerial works. The immediate cause was a collision with terrain. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards

An agricultural aircraft crashed into terrain during a low-altitude turn after spraying a field. The commander and a standing passenger died, while a child passenger was seriously injured.

Operational Background and Crew Status The aircraft commander arrived at the temporary airstrip in the village of Kozlovets at approximately 09:00 and accepted the aircraft from a technician. The aircraft was refueled with 400 liters of gasoline, as recorded in the monthly book, and then moved to a chemical charge stand where it was loaded with 1,350 liters of herbicide. According to the technician, the first flight began at 09:15. The crew was incomplete, as there was no copilot onboard. After the fourth flight at 11:00 and the tenth flight at 13:30, the aircraft was refueled with 200 liters of gasoline each time. Following the eleventh flight, two non-crew members boarded with the commander's permission for the twelfth flight. An 11-year-old schoolboy occupied the right-hand cockpit seat, while the other person stood upright between the two pilot seats.

Probable cause

The main cause was the aircraft commander's demonstrated self-sufficiency and lack of self-discipline, leading to violations of flight rules during aerial works. The immediate cause was a collision with terrain. Contributory factors included the operator's negligence in meeting regular flying staff requirements, degraded control over aerial work activities, and a lack of in-depth analysis of flight personnel abilities.

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