MARIANA (IMO 8009935)
MARIANA is an Offshore Supply Ship built in 1981 and flying the United States of America flag, placing it in its 45th year of service. The vessel reports a deadweight tonnage of 450 metric tonnes and a gross tonnage of 540. This vessel is configured for offshore support operations within its specific size class. There is no recorded IACS membership for this vessel. Recent observation data places the vessel in the New Guinea Pacific and South East Asia regions. It has previously operated under two different names and two different flag states. Over the last 36 months it has had 1 port state control (PSC) inspection and no detentions. The most recent inspection was on 26 June 2026.
- Type: Offshore Supply Ship
- Flag: United States of America
- Year built: 1981
- MMSI: 338719000
- Call sign: WDK4928
- Gross tonnage: 540
- Deadweight: 450 t
- Port State Control (PSC) inspections: 1 since 2026
- PSC detentions in the last 36 months: 0
- Last PSC inspection: 26/06/2026
Frequently asked questions
What is the vessel type of MARIANA?
MARIANA is an Offshore Supply Ship. It was built in 1981 and is currently in its 45th year of service.
What are the tonnage specifications for MARIANA?
The vessel has a deadweight tonnage of 450 metric tonnes. Its gross tonnage is recorded at 540.
Where has MARIANA been recently observed?
The vessel has been observed in the New Guinea Pacific and South East Asia regions. These areas represent its most recent recorded geographic activity.
How many inspections has MARIANA undergone?
Over the last 36 months it has had 1 port state control (PSC) inspection and no detentions, with no deficiencies recorded. The most recent inspection was on 26 June 2026. All-time records show 1 inspection since 2026 and no detentions.
What is the flag history of MARIANA?
The vessel currently flies the United States of America flag. Its history shows it has operated under 2 different flag states previously.
Live AIS via Rynda — combined with classification, PSC, sanctions and ownership data.