DEFENDER

Towing Vessel · Built 1970s · USCG Southeast District (CGD-SE)

DEFENDER is a 1976 towing vessel. The Coast Guard has recorded 55 inspections since 1994, most recently in July 2026, along with 5 deficiencies, 2 operational controls and 12 casualty investigations between 2006 and 2026.

Records from 1994 to 2026. Most recent: inspection, 9 July 2026.

Built: 1976
Last inspected: 9 July 2026
Documentation: Valid · documentation file of 10 August 2026
Inspections: 55
Deficiencies: 5 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date
Casualties: 12 investigations · 2006–2026
Inspected with: 2 other vessels

Everything above is free. The detail below — the inspection history, the deficiency record, the operational controls, the tow units, the casualty record and the documentation record — is Professional, $39 a month. Sign 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 Towing Vessel class in Maury's sources begin in 1980.

Inspection record

Last inspected 9 July 2026

Recorded inspections55

…physical examinations21

…administrative events14

…with no type recorded20

Deficiencies 5 recorded · 0 without a recorded resolution

Operational controls None recorded without a removal date

Years with a record 24 calendar years (1994–2026)

Every line above is a count of records the US Coast Guard wrote, or a date it recorded. A blank resolution means none was recorded in this data; it does not establish that a deficiency is outstanding. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

Identity

576314

7507394

WBN3016

144331

Flag

UNITED STATES

Maury page id

psix-144331

Documentation record

Registered dimensions (L × B × D)128.6 ft × 36.5 ft × 19.2 ft

Registered tonnagegross 199 / net 135

ITC dimensions (L × B × D)128.6 ft × 36.5 ft × 19.2 ft

ITC tonnagegross 538 / net 161

BuilderMCDERMOTT SHIPYARD · AMELIA, LA, UNITED STATES · built 1976

Hull materialSteel

PropulsionDiesel Reduction

Hull shapeUNSPECIFIED

Hull configurationUNSPECIFIED

Hailing portSAN FRANCISCO, CA

Trade endorsementsCoastwise, unrestricted, Registry

DocumentationValid · issued 13 November 2025 · expires 31 December 2026

Service, as the file records itTowing Vessel

Hull formpowered (Maury's inference from propulsion, hull shape, material and length, rule hf-1; not a recorded fact)

Tonnage as PSIX records it538 - Convention (Subpart B), Gross Ton
199 - Regulatory (Subpart C or D), Gross Ton
161 - Convention (Subpart B), Net Ton
135 - Regulatory (Subpart C or D), Net Ton

Every line above is a field of the National Vessel Documentation Center's file as served by NOAA Fisheries, dated 10 August 2026, matched to this hull on its Official Number. Registered and ITC measurements are two systems and are never combined. One snapshot is held so far; documentation history begins with the next.

Professional

Detail on this page

55 inspections, each with its date, unit and type; 5 deficiencies with the resolution recorded against each; 2 operational controls with the dates imposed and removed; 2 vessels inspected with it, by name and date; 12 casualty investigations, with date and classification; the documentation record: dimensions, tonnage, builder, hailing port, endorsements, dates. The counts in the summary above are the same counts, and they are free.

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Vessel history report

Every record for this hull, in one document — $299

Every recorded inspection, 1980 to 2026 for this class, in one chronology · every deficiency, with system, dates and resolution · operational controls imposed and removed · every name this hull has been recorded under · the vessels it was inspected alongside, and when · how its record compares with hulls of similar age and size, as a fact about the population and never a judgement about this vessel.

Read one first, in full: a forty-year chronology · a hull that changed operators four times · the sparse case, shown as an example, not for sale.

This report is in development and is not for sale yet. There is no date, and nothing is charged. Leave an email and we will tell you when it exists, once.

Inspected as a tow unit · 2

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.

EL CONQUISTADOR Freight Barge · MISLE 49858 · 20 March 2026 · activity 8340874 MIAMI Freight Barge · MISLE 48801 · 17 November 1994 · activity 45773

Inspection history · 55

9 July 2026 Administrative Inspection

Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 8433819

20 March 2026 Deficiency Check · Damage Survey · Administrative Inspection

Physical examination · Marine Safety Unit Port Canaveral · USCG Southeast District (CGD-SE) · Activity 8331106

20 March 2026 Type not recorded

No type recorded · Marine Safety Unit Port Canaveral · USCG Southeast District (CGD-SE) · Activity 8340874

23 October 2025 Administrative Inspection

Administrative · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 8258014

23 October 2025 Deficiency Check · Administrative Inspection

Physical examination · Sector Delaware Bay · USCG East District (CGD-E) · Activity 8260392

6 August 2025 Bulk Liquid Transfer Monitor

Physical examination · Sector Delaware Bay · USCG East District (CGD-E) · Activity 8203556

16 July 2025 Administrative Inspection

Administrative · Sector Delaware Bay · USCG East District (CGD-E) · Activity 8187135

4 February 2025 Damage Survey

Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 8074240

30 January 2025 Administrative Inspection

Administrative · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 8078173

8 January 2025 In-Service Inspection

Physical examination · Sector North Carolina · USCG East District (CGD-E) · Activity 8060279

24 August 2024 Administrative Inspection

Administrative · Marine Safety Detachment Fort Macon · USCG East District (CGD-E) · Activity 7988068

24 August 2024 Type not recorded

No type recorded · Marine Safety Detachment Fort Macon · USCG East District (CGD-E) · Activity 7996033

9 May 2023 COI Inspection

Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 7684731

14 April 2022 Administrative Inspection

Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 7430757

28 May 2021 Administrative Inspection

Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 7208940

7 March 2021 Damage Survey · Deficiency Check

Physical examination · Sector North Carolina · USCG East District (CGD-E) · Activity 7152376

7 March 2021 Type not recorded

No type recorded · Sector North Carolina · USCG East District (CGD-E) · Activity 7197992

10 November 2020 Deficiency Check · Administrative Inspection

Physical examination · Sector Delaware Bay · USCG East District (CGD-E) · Activity 7093078

6 October 2020 Bulk Liquid Transfer Monitor

Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 7119226

2 July 2020 Administrative Inspection

Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6993395

19 August 2019 Excursion Permit

Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6788193

8 July 2019 MARPOL Annex I Examination · DAPI Audit · Initial Certification

Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6741787

8 May 2019 MTSA/ISPS Verification

Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 6678654

11 July 2018 Type not recorded

No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6476730

26 June 2017 Type not recorded

No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6205361

6 April 2017 Type not recorded

No type recorded · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 6127241

17 May 2016 MTSA/ISPS Verification

Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 5879285

16 June 2014 MTSA/ISPS Verification

Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 4890362

2 August 2013 Type not recorded

No type recorded · Sector Delaware Bay · USCG East District (CGD-E) · Activity 4672942

2 August 2013 Type not recorded

No type recorded · Sector Delaware Bay · USCG East District (CGD-E) · Activity 4739246

13 May 2013 Type not recorded

No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 4596293

24 January 2013 Type not recorded

No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 4521208

22 January 2013 Damage Survey

Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 4520223

19 January 2013 Type not recorded

No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 4524525

15 July 2012 Type not recorded

No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 4383587

17 December 2011 Type not recorded

No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 4213224

2 August 2011 Industry Initiated Exam

Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 4118643

13 May 2011 MTSA/ISPS Verification

Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 4010253

14 January 2009 Deficiency Check

Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 3394122

30 December 2008 Damage Survey

Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 3387903

24 December 2008 Type not recorded

No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 3404036

12 December 2008 MTSA/ISPS Verification

Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 3366458

1 June 2006 MTSA/ISPS Verification

Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 2666983

27 March 2006 Type not recorded

No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 2615165

6 July 2005 Administrative Inspection

Administrative · Marine Safety Center (MSC) · Activity 2417387

21 June 2005 Security Plan Amendment Review - VSP

Administrative · Marine Safety Center (MSC) · Activity 2397500

16 March 2005 MTSA/ISPS Verification · Annual Inspection

Physical examination · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 2311372

1 July 2004 Administrative Inspection

Administrative · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 2123334

6 February 2004 Security Plan Review - VSP

Administrative · Marine Safety Center (MSC) · Activity 2003622

30 December 2003 Security Plan Review - ASP

Administrative · Marine Safety Center (MSC) · Activity 1978292

29 August 2002 Type not recorded

No type recorded · GROUP PHILADELPHIA · USCG East District (CGD-E) · Activity 1668305

31 December 1996 Type not recorded

No type recorded · MSO MIAMI · USCG Southeast District (CGD-SE) · Activity 116989

3 October 1996 Type not recorded

No type recorded · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 757480

27 September 1996 Type not recorded

No type recorded · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 195221

17 November 1994 Type not recorded

No type recorded · MSO HAMPTON ROADS · USCG East District (CGD-E) · Activity 45773

Deficiency record · 5

02 - Structural Conditions › N/A - No Subsystem › Steering gear

Issued 23 October 2025 Resolved

Machinery and electrical systems must be designed and maintained to provide for safe operation of the towing vessel and safety of persons onboard under normal and emergency conditions. The crew of each towing vessel must demonstrate the ability to operate the primary and auxiliary machinery and electrical systems for which they are responsible, and to do so under normal and emergency conditions. This includes, but is not limited to, responses to alarms and restoration of propulsion and steering in the event of failure. Vessel reported loss of steering during transit. Provide report of root cause for steering loss, how was restored, and how steering will be permanently fixed, in accordance with TSMS program requirement. 46 CFR 143.205 (a)&(b)

Action required: 16 - Rectify deficiencies w/in 14 days
Due 6 November 2025
Resolved 29 October 2025
Resolution: Provided report. See attached documents

01 - Certificates & Documentation › 013 - Documents › Log-books/compulsory entries

Issued 23 October 2025 Resolved

Prior to getting underway, the master or officer in charge of a navigational watch of the vessel must examine and test the steering gear. The results of the examination and testing must be recorded in the TVR, official logbook, or in accordance with the TSMS applicable to the vessel. Provide evidence of previous recorded testings of the steering gear. 46 CFR 140.615 (b)&(c)

Action required: 16 - Rectify deficiencies w/in 14 days
Due 6 November 2025
Resolved 29 October 2025
Resolution: Provided logbooks. See documents

13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Propulsion main engine

Issued 16 July 2025 Resolved

Machinery and electrical systems must be designed and maintained to provide for safe operation of the towing vessel and safety of persons on board under normal and emergency conditions. Vessel reported a lube oil leak on the starboard MDE. Vessel is restricted from commercial operations until cleared with TPO and receipt from bilge cleaning company is received by our office.

Condition: Invalid
Action required: 705 - Other - as specified
Due 22 July 2025
Resolved 22 July 2025
Resolution: Vessel provided receipts from Miller Environmental Group for bilge cleaning

13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Other (machinery)

Issued 7 March 2021 Resolved

MACHINERY AND ELECTRICAL SYSTEMS MUST BE DESIGNED AND MAINTAINED TO PROVIDE FOR SAFE OPERATION OF THE TOWING VESSEL; VESSEL'S MASTER REPORTED LOSS OF RUDDER CONTROL USING STBD PUMP.

Action required: 16 - Rectify deficiencies w/in 14 days
Due 21 March 2021
Resolved 10 March 2021
Resolution: Received TPO report stating that faulty limit switch was replaced and vessel's steering system is tested sat

Engineering › Steering Gear System › Motor

Issued 30 December 2008 Resolved

port steering pump failure while entering port of san juan. Vessel to check and repair prior to departure.

Condition: Unknown
Action required: 17 - Rectify deficiencies prior to departure
Resolved 2 January 2009
Resolution: port steering electrical motor replaced

Casualty record · 12

27 March 2006Routine · role: Involved in a Marine Casualty · activity 2615165

24 December 2008Routine · role: Involved in a Marine Casualty · activity 3404036

17 December 2011Routine · role: Involved in a Marine Casualty · activity 4213224

15 July 2012Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 4383587

19 January 2013Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 3 injured · activity 4524525

13 May 2013Routine · role: Involved in a Marine Casualty · activity 4596293

2 August 2013Routine · role: Involved in a Marine Casualty · activity 4739246

26 June 2017Routine · role: Involved in a Marine Casualty · activity 6205361

11 July 2018Routine · role: Involved in a Marine Casualty · activity 6476730

7 March 2021Routine · role: Involved in a Marine Casualty · activity 7197992

24 August 2024Routine · role: Involved in a Marine Casualty · activity 7996033

20 March 2026Routine · role: Involved in a Marine Casualty · activity 8340874

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.

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.