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DEEPWATER THALASSA

DEEPWATER THALASSA is a mobile offshore drilling unit. The Coast Guard has recorded 22 inspections since 2015, most recently in February 2026, along with 1 deficiency.

Records from 2015 to 2026. Most recent: inspection, 23 February 2026.

Built
Not recorded
Last inspected
23 February 2026
Documentation
Not in the documentation file of 10 September 2026
Controls
None recorded without a removal date

Identity

9675169 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here
1375784
Flag
MARSHALL ISLANDS
—
Maury page id
psix-1375784

Inspections, by type

…with no type recorded11
Years with a record 11 calendar years (2015–2026)
The 22 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.

Coast Guard record current through 13 September 2026, retrieved 18 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 1978.

Documentation record

Tonnage as PSIX records it21029 - Convention (Subpart B), Net Ton
70095 - Convention (Subpart B), Gross Ton
This hull's Official Number is not in the NVDC file dated 10 September 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.

Radio station licence

No FCC ship-station licence is recorded against this Official Number in the file of 6 September 2026. That is a fact about the licence file, not about the radio.

A report is not offered for this hull: Its record holds only 2 of the seven kinds of material a report is built from: inspections, deficiencies, operational controls, tow-unit appearances, casualty records, dimensions and documentation. That is a statement about the record, not about the vessel. Reports.

Inspection history · 22

23 February 2026 Administrative Inspection
Administrative · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 8314300
10 August 2025 Type not recorded
No type recorded · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 8269671
24 July 2025 Type not recorded
No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 8197432
1 July 2025 In-Service Inspection · Administrative Inspection
Physical examination · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 8190876
1 September 2023 In-Service Inspection
Physical examination · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 7782340
26 July 2023 COC-MODU Renew
Type not classified · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 7756894
1 August 2022 COC-MODU Renew
Type not classified · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 7564283
5 August 2021 ISPS Exam · Ballast Water Examination · COC-MODU Annual
Physical examination · USCG Heartland District (ocs) · USCG Heartland District (CGD-H) · Activity 7281549
15 June 2020 ISPS Exam · COC-MODU Renew
Physical examination · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 6978042
15 October 2019 Type not recorded
No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 6852036
10 June 2019 Type not recorded
No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 6745605
12 May 2019 Type not recorded
No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 6688971
20 March 2019 COC-MODU Annual · ISPS II Exam
Physical examination · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 6651140
6 March 2019 Type not recorded
No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 6716508
4 February 2019 Type not recorded
No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 6627944
26 November 2018 Type not recorded
No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 6594844
4 November 2018 Type not recorded
No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 6589430
12 February 2018 Type not recorded
No type recorded · Sector Mobile · USCG Heartland District (CGD-H) · Activity 6358594
3 December 2017 COC-MODU Renew · PII Safety Exam · Ballast Water Examination
Physical examination · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 6333309
12 February 2017 Type not recorded
No type recorded · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6096842
9 November 2016 COC-MODU Annual
Type not classified · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 6072785
17 December 2015 COC-MODU Renew
Type not classified · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 5784380

Deficiency record · 1

Documentation › Manuals/Policy Documentation › Procedures and Arrangements Manual (NLS)
Issued 9 November 2016 Resolved
FF maintenance system, repairs and inspections found missin procedures IAW MSC./Circ. 1432
Condition: Improper/Lack of Maintenance
Due 9 December 2016
Resolved 6 December 2016
Resolution: Company provided proof of documentation

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.