No fatalities

Baltic Sea Temperature Survey Aircraft Ditched in the Irben Strait (CCCP-91611)

Saaremaa Island, EstoniaFlight

On September 16, 1984, an Ilyushin II-14 (registration CCCP-91611) operated by Aeroflot - Russian International Airlines was involved in an aviation accident near Saaremaa Island, Estonia in flight. No fatalities were reported. Investigators recorded the probable cause as: Engine failure, maybe due to icing. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

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

An aircraft conducting a Baltic Sea temperature survey lost right engine power at 300 m, possibly due to icing. The crew ditched in the Irben Strait; all 10 people aboard were rescued.

Incident Overview and Mission Context The aircraft departed from Rzhevka Airport on a mission to take temperature readings of the Baltic Sea. While cruising at an altitude of 300 meters, the right engine lost power, possibly due to icing. The aircraft then lost speed and height, prompting the captain to ditch the aircraft in the Irben Strait south of Saaremaa island, Estonia. ## Ditching, Sinking, and Rescue After ditching, the aircraft sank after 12 minutes. All 6 crew members and 4 passengers were rescued by a patrol boat. ## Official Findings The official probable cause was engine failure, maybe due to icing.