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Operations HomeOur OrganizationAssistant Commandant for Prevention Policy (CG-5P)Inspections & Compliance (CG-5PC)Office of Investigations & Casualty AnalysisMajor InvestigationsCase 1488653

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Cargo Ship MARIANA Capsize and Loss

Formal Marine Casualty Investigation

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This site provides information regarding the U.S. Coast Guard’s formal marine casualty investigation, convened by the Oceania District Commander, into the capsizing of the cargo vessel MARIANA (Official Number 635750) with one crewmember recovered deceased and the remaining five crewmembers missing, presumed lost, in the Pacific Ocean approximately 34 nautical miles northeast of Pagan Island on or about April 16, 2026.

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Incident Information

Incident Date: On or About 04/16/2026

Location:  Pacific Ocean approximately 34 nautical miles northeast of Pagan Island

Involved Vessel:

Name: MARIANA
Flag: United States
Identification: U.S. Official Number 635750
Class/Type: General Dry Cargo Ship
Build Year: 1981
Length: 145.0 ft
Gross Tons: 199 GRT/540 GT ITC
Crew Members: Master, 5 Crew Members

Investigation Information

Convening Authority: Commander, Oceania District

Investigation Type:  District Formal Investigation

MISLE Case/Activity IDs: 1488653/8354012

Status: Open-In Progress

Additional Information: This incident was identified as a major marine casualty as defined in Title 46, Code of Federal Regulations, Subpart 4.40, and as such, is being concurrently investigated by the U.S. National Transportation Safety Board (NTSB) to determine the probable cause, with both agencies agreeing that the Coast Guard will lead the investigative efforts in accordance with the NTSB-USCG MOU.  The NTSB's investigation has been assigned the NTSB ID of DCA26FM007.  Questions and inquiries to the NTSB should be directed to NTSB Media Relations at mediarelations@ntsb.gov or (202) 314-6100.

Press Releases

Investigation-related Contacts

Please direct media inquiries about this incident and the Coast Guard's investigation to:
U.S. Coast Guard Oceania District
Commander (de)
(808) 535-3230
 
If you have information about this incident that you would like to share with the Investigation Team, please email them at: