RELENTLESS

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

RELENTLESS is a 2001 offshore supply vessel. The Coast Guard has recorded 18 inspections since 2001, most recently in July 2011, along with 3 deficiencies, 1 operational control and 3 casualty investigations between 2003 and 2013.

Records from 2001 to 2013. Most recent: casualty investigation, 29 July 2013.

Built: 2001
Last inspected: 8 July 2011
Documentation: Not in the documentation file of 10 September 2026
Inspections: 18
Deficiencies: 3 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date
Casualties: 3 investigations · 2003–2013
Inspected with: 1 other vessel
Also recorded as: 1 other name

Identity

US Official No.

1108684

IMO number

8967553 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here

Call sign

WDG8179

MISLE id

22793

Flag

UNITED STATES

MMSI

367574820

Maury page id

psix-22793

Inspections, by type

…physical examinations12

…administrative events1

…with no type recorded5

Years with a record 11 calendar years (2001–2011)

The 18 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 15 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 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 it443 - Convention (Subpart B), Gross Ton
132 - Convention (Subpart B), Net Ton
65 - Regulatory (Subpart C or D), Net Ton
95 - Regulatory (Subpart C or D), 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

WDP2174MMSI 367574820 · active · compulsorily equipped · granted 16 September 2023, expires 16 September 2033 · licensed under a name not among this hull’s recorded names (not shown)

WDG8179MMSI 367574820 · expired · compulsorily equipped · granted 15 May 2013, cancelled 15 July 2023

WDA7001MMSI 366838460 · expired · compulsorily equipped · granted 19 January 2012, cancelled 16 April 2022 · licensed under a name not among this hull’s recorded names (not shown)

WDA8100MMSI 366850650 · cancelled · compulsorily equipped · granted 4 May 2002, cancelled 28 May 2002

FCC Universal Licensing System ship-station file of 6 September 2026, matched to this hull on its US Official Number. Status and dates are the file’s own. The licensee is not read from the file and is not shown. A lapsed licence’s MMSI is still the number the vessel transmitted under while it was valid.

Inspected as a tow unit · 1

The Coast Guard recorded this vessel and the following in the same inspection activity — normally a tug and the barges in its tow. A recreational or unclassed hull in the same activity is held and not published, so it does not appear here: these lists are a floor, not a complete manifest.

MARELLA DISCOVERY Passenger (Inspected) · MISLE 442608 · 7 March 2003 · activity 1759700

Inspection history · 18

8 July 2011 Deficiency Check

Physical examination · Marine Safety Unit Galveston · USCG Heartland District (CGD-H) · Activity 4074273

23 March 2010 Re-Inspection

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 3701347

12 May 2009 Re-Inspection · Hull Examination · Internal Structural Exam · Examination of Repairs

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 3505821

24 September 2008 Re-Inspection

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 3331676

1 May 2008 Type not recorded

No type recorded · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 3196210

12 September 2007 Administrative Inspection

Administrative · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 3055849

2 June 2006 COI Inspection

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 2667565

1 June 2006 Hull Examination · Internal Structural Exam · Examination of Repairs

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 2667493

22 August 2005 Re-Inspection

Physical examination · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 2465227

15 June 2005 MTSA Verification

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 2391811

29 April 2004 Hull Examination · Re-Inspection · Internal Structural Exam

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 2055217

14 July 2003 Type not recorded

No type recorded · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1846010

14 July 2003 Type not recorded

No type recorded · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1846261

19 March 2003 Re-Inspection

Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 1759477

7 March 2003 Type not recorded

No type recorded · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1759700

11 July 2002 Re-Inspection

Physical examination · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1643866

15 November 2001 Type not recorded

No type recorded · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1479348

24 May 2001 Initial Certification · Initial Construction-Excluding Oversight · Hull Examination

Physical examination · MSO Mobile · USCG Heartland District (CGD-H) · Activity 1470837

Deficiency record · 3

Operations/Management › Drills/Instruction › Fire

Issued 23 March 2010 Resolved

All drills must be conducted and logged prior to sail. Vessel has been stacked and crew has only been working on materiel condition of vessel the last few days.

Action required: 17 - Rectify deficiencies prior to departure
Resolved 24 March 2010
Resolution: Drills were logged, conducted and copy of log faxed to unit.

Communications › Alarms/Indicators › Rudder Angle Indicator

Issued 23 March 2010 Resolved

RAI is reading 20 degrees difference between stations.

Due 24 April 2010
Resolved 5 April 2010
Resolution: RAI''s recalibrated and tested by EMT, invoice accepted as proof of correction.

Lifesaving › Embarkation Appliances/Stations › Side Ropes

Issued 19 March 2003 Resolved

PROVIDE ROPES FOR RESCUE BASKET.

Action required: 17 - Rectify deficiencies prior to departure
Due 19 April 2003
Resolved 19 March 2003

Casualty record · 3

7 March 2003Routine · role: Involved in a Marine Casualty · activity 1759700

12 July 2013Routine · role: Involved in a Marine Casualty · activity 4656416

29 July 2013Routine · role: Involved in a Marine Casualty · activity 4669144

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, and the bridge, lock or dam the investigation names where it names one. Involvement is not fault. The investigation narrative is not published. Source: IIR, through 2026.

Recorded names · 1

SPT RELENTLESS (2003). 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.