Following initial Remote Operated Vehicle (ROV) operations, wreckage of Coast Guard helicoper R116 has been positively located on the seabed, east of Blackrock at a depth of approximately 40m.

Blackrock MB data

INFOMAR multibeam data of waters surveyed around Blackrock Island, Co Mayo

Operations are continuing but are weather dependent, according to a statement from the Air Accident Investigation Unit, in consultation with An Garda Siochána, the Navy, the Coast Guard, Geological Survey Ireland and the Marine Institute.