STS POSEIDON

Offshore Supply Vessel · Offshore class · Built 2000s · USCG Heartland District (CGD-H)

STS POSEIDON is a 2004 offshore supply vessel. The Coast Guard has recorded 9 inspections since 2016, most recently in August 2021, along with 3 deficiencies and 1 casualty investigation in 2011.

Records from 2011 to 2021. Most recent: inspection, 2 August 2021.

Built: 2004
Last inspected: 2 August 2021
Documentation: Not in the documentation file of 10 August 2026
Inspections: 9
Deficiencies: 3 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date
Casualties: 1 investigation · 2011
Also recorded as: 1 other name

Identity

1152372

8987888

HP6366

668881

Flag

UNITED STATES

Maury page id

psix-668881

Inspections, by type

…physical examinations8

…with no type recorded1

Years with a record 6 calendar years (2016–2021)

The 9 inspections in the strip above, split by the kind of activity the US Coast Guard recorded. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

This record may be incomplete: the most recent inspection recorded for this vessel was 5 years ago. Maury shows what the Coast Guard recorded, not whether the vessel has been inspected since, is still in service, or what condition it is in. Coast Guard record current through 23 August 2026, retrieved 5 September 2026 from PSIX. Every field on this page was recorded by the Coast Guard. Records for the Offshore class in Maury's sources begin in 2016.

Documentation record

Tonnage as PSIX records it406 - Convention (Subpart B), Gross Ton
94 - Regulatory (Subpart C or D), Gross Ton
121 - Convention (Subpart B), Net Ton
64 - Regulatory (Subpart C or D), Net Ton

This hull's Official Number is not in the NVDC file dated 10 August 2026 as served by NOAA Fisheries, so no documentation record is shown. Absence from that file is a fact about the file, not about the hull.

One vessel history report for this hull — every record on this page in one dated, citable document — $300, on request.

Inspection history · 9

2 August 2021 Random ISPS/MTSA/PSC · Deficiency Check · In-Service Inspection

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 7272620

29 May 2020 Annual Inspection · Administrative Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6963352

23 July 2019 MTSA Verification · Annual Inspection · Administrative Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6759250

12 March 2019 Administrative Inspection · Drydock Exam · Internal Structural Exam

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6641086

30 May 2018 Commercial Dive Inspection · Annual Inspection · Administrative Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6428801

5 July 2017 Annual Inspection · Administrative Inspection · MTSA Verification

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6197805

5 June 2016 In-Service Inspection

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 5898779

5 June 2016 Type not recorded

No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 5909187

17 May 2016 Internal Structural Exam · Administrative Inspection · Hull Examination

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 5879313

Deficiency record · 3

01 - Certificates & Documentation › 012 - Crew Certificates › Certificates for master and officers

Issued 2 August 2021 Resolved

01201: Subject to the provisions of regulation I/10, paragraph 5, any certificate required by the Convention must be kept available in its original form on board the ship on which the holder is serving. Master did not have original flag state endorsement on board the vessel. STCW I/2.11

Condition: Placed in Improper Service
Action required: 17 - Rectify deficiencies prior to departure
Resolved 5 August 2021
Resolution: Agent provided letter from Flag attesting to valid endorsement and one time voyage waiver to panama where original document will be received.

13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Operation of machinery

Issued 23 July 2019 Resolved

Vessel controls would not synch on command at operation station so vessel could conduct propulsion test. 46CFR58.05-5

Action required: 50 - Rectify deficiencies w/in 30 days
Due 14 August 2019
Resolved 25 July 2019
Resolution: Throttles in bridge were fix and now propulsion is working.

Pollution Prevention/Response › Prevention Equipment › Oily Residue (sludge/slop) Tank

Issued 5 June 2016 Resolved

VSL was written a CG-835 to pump out overfilled dirty oil tanks prior to getting u/w because a pollution incident that had already occured.

Due 5 June 2016
Resolved 6 June 2016
Resolution: Receipt was emailed showing that tanks were pumped out by ESH.

Casualty record · 1

4 January 2011Routine · role: Involved in a Marine Casualty · activity 3922780

Each line is an incident investigation the Coast Guard recorded with this hull among the vessels involved, with the date and the classification the Coast Guard gave it. Involvement is not fault. The investigation narrative is not published. Source: IIR, through 2026.

Recorded names · 1

OCEAN INSPECTOR (2011). Names as the Coast Guard recorded them in incident records, with the years they appear; some are renames and some are spelling variants.

Ownership record

The Coast Guard's documentation record for this hull -- the Abstract of Title, with its owners and liens as filed -- is not in PSIX. Ask, and Maury buys it from the National Vessel Documentation Center, files it here with its date, and every reader of this page gets it.