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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)Source recordUpdated 2026-09-03Data 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.

Engine failure

Related events

Same operator

Frequently asked questions

What happened in the 16 Sept 1984 Ilyushin II-14 accident near Saaremaa Island, Estonia?

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.

Were there any fatalities in the 16 Sept 1984 Ilyushin II-14 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 16 Sept 1984 involved an Ilyushin II-14, registration CCCP-91611, operated by Aeroflot - Russian International Airlines, at Saaremaa Island, Estonia.

What was the probable cause of the accident?

Engine failure, maybe due to icing.

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