MAURY USCG vessel records
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EXPLORER

EXPLORER is a 1975 towing vessel. The Coast Guard has recorded 74 inspections since 1991, most recently in June 2026, along with 3 deficiencies, 4 operational controls and 17 casualty investigations between 2007 and 2025.

Records from 1991 to 2026. Most recent: operational control imposed, 9 June 2026.

Built
1975
Last inspected
9 June 2026
Documentation
Valid · documentation file of 10 August 2026
Controls
None recorded without a removal date

Identity

7397660
WBN7618
133702
Flag
UNITED STATES
Maury page id
psix-133702

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.

Inspections, by type

…with no type recorded38
Years with a record 26 calendar years (1991–2026)
Every line above is a count of records the US Coast Guard wrote, or a date it recorded. The counts in the strip above are the same counts; this table splits the inspections by the kind of activity 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.

Documentation record

Registered dimensions (L × B × D)127.2 ft × 36.5 ft × 10.8 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 1975
Hull materialSteel
PropulsionDiesel Direct
Hull shapeUNSPECIFIED
Hull configurationUNSPECIFIED
Hailing portSAN FRANCISCO, CA
Trade endorsementsCoastwise, unrestricted, Registry
DocumentationValid · issued 9 December 2025 · expires 31 January 2027
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 it199 - Regulatory (Subpart C or D), Gross Ton
538 - Convention (Subpart B), Gross Ton
135 - Regulatory (Subpart C or D), Net Ton
161 - Convention (Subpart B), 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.
Vessel history report
Every record for this hull, in one document — $299

What it gives that this page does not: the whole record in one dated, citable document — every line with its Coast Guard activity id, the retrieval date on the cover, built to print to PDF with its page breaks — that a surveyor can attach and a lender can file. The same facts as this page, complete and in one file.

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.

A request, not a checkout: leave an email and Maury replies once, with the dated document for this hull and a Stripe invoice for $299. Nothing is charged before the document is in your hands.

Inspected as a tow unit · 8

Inspection history · 74

9 June 2026 Damage Survey
Physical examination · Marine Safety Detachment Nags Head · USCG East District (CGD-E) · Activity 8395724
9 June 2026 Type not recorded
No type recorded · Sector Delaware Bay · USCG East District (CGD-E) · Activity 8396066
15 October 2025 COI Inspection
Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 8253347
7 February 2025 Administrative Inspection
Administrative · Sector Mobile · USCG Heartland District (CGD-H) · Activity 8076443
28 January 2025 Administrative Inspection
Administrative · Sector Virginia · USCG East District (CGD-E) · Activity 8071088
21 January 2025 Type not recorded
No type recorded · Sector Charleston · USCG Southeast District (CGD-SE) · Activity 8071606
21 January 2025 Type not recorded
No type recorded · Sector Charleston · USCG Southeast District (CGD-SE) · Activity 8072209
15 January 2025 MTSA/ISPS Verification
Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 8063946
6 January 2025 MTSA/ISPS Verification
Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 8058618
26 October 2024 Administrative Inspection
Administrative · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 8025852
13 September 2024 Type not recorded
No type recorded · Marine Safety Unit Port Canaveral · USCG Southeast District (CGD-SE) · Activity 8013807
9 May 2024 Administrative Inspection
Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 7909232
24 April 2024 Type not recorded
No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 7900578
5 March 2024 Deficiency Check
Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 7874390
3 March 2024 Administrative Inspection
Administrative · Sector Miami · USCG Southeast District (CGD-SE) · Activity 7873387
1 December 2023 Type not recorded
No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 7832070
30 June 2023 Type not recorded
No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 7734852
30 April 2023 Type not recorded
No type recorded · Sector North Carolina · USCG East District (CGD-E) · Activity 7688631
6 March 2023 Type not recorded
No type recorded · Sector North Carolina · USCG East District (CGD-E) · Activity 7646854
17 February 2023 Type not recorded
No type recorded · Sector Delaware Bay · USCG East District (CGD-E) · Activity 7638313
22 December 2022 MTSA/ISPS Verification
Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 7612149
23 August 2022 ISM SMC Audit
Administrative · Sector Delaware Bay · USCG East District (CGD-E) · Activity 7541651
30 April 2022 Type not recorded
No type recorded · Sector Delaware Bay · USCG East District (CGD-E) · Activity 7442969
24 February 2021 Administrative Inspection
Administrative · Sector Delaware Bay · USCG East District (CGD-E) · Activity 7146718
2 July 2020 Administrative Inspection
Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6993413
15 May 2020 Administrative Inspection
Administrative · Sector Delaware Bay · USCG East District (CGD-E) · Activity 6953621
21 January 2020 MTSA/ISPS Verification
Physical examination · Sector Delaware Bay · USCG East District (CGD-E) · Activity 6886168
16 December 2019 Type not recorded
No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6874887
9 December 2019 Administrative Inspection
Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6870001
1 July 2019 Administrative Inspection
Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6731935
20 February 2019 Type not recorded
No type recorded · Sector Delaware Bay · USCG East District (CGD-E) · Activity 6637154
29 August 2018 Administrative Inspection
Administrative · Navigation Center · Activity 6526227
16 July 2018 Initial Certification
Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6481425
7 January 2018 Type not recorded
No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 6366265
12 October 2017 MTSA/ISPS Verification
Physical examination · Sector Delaware Bay · USCG East District (CGD-E) · Activity 6286308
7 May 2017 Type not recorded
No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 6143957
19 January 2017 Type not recorded
No type recorded · Sector Delaware Bay · USCG East District (CGD-E) · Activity 6079371
21 October 2015 Type not recorded
No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 5744350
16 October 2015 Type not recorded
No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 5744528
14 July 2015 Type not recorded
No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 5190592
16 June 2015 Administrative Inspection
Administrative · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 5155212
6 February 2015 MTSA/ISPS Verification
Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 5065080
12 April 2014 Type not recorded
No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 4835913
1 April 2014 Type not recorded
No type recorded · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 4827875
25 September 2013 Type not recorded
No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 4723187
9 August 2012 MTSA Verification
Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 4405854
6 July 2012 Type not recorded
No type recorded · Sector Mobile · USCG Heartland District (CGD-H) · Activity 4383751
9 September 2011 Industry Initiated Exam
Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 4145148
4 June 2010 Type not recorded
No type recorded · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 3814629
4 February 2010 MTSA/ISPS Verification
Physical examination · Sector San Juan · USCG Southeast District (CGD-SE) · Activity 3675454
19 October 2007 MTSA/ISPS Verification
Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 3083133
2 March 2007 Type not recorded
No type recorded · Sector Delaware Bay · USCG East District (CGD-E) · Activity 2882145
14 April 2006 MTSA/ISPS Verification
Physical examination · Sector Jacksonville · USCG Southeast District (CGD-SE) · Activity 2624537
6 July 2005 Administrative Inspection
Administrative · Marine Safety Center (MSC) · Activity 2417374
21 June 2005 Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2397495
3 March 2005 MTSA/ISPS Verification · Uninspected Other
Physical examination · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 2301495
3 March 2005 Annual Inspection
Physical examination · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 2305701
1 July 2004 Administrative Inspection
Administrative · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 2123302
6 February 2004 Security Plan Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2003619
30 December 2003 Security Plan Review - ASP
Administrative · Marine Safety Center (MSC) · Activity 1978281
10 November 1998 Type not recorded
No type recorded · MSO SAN JUAN · USCG Southeast District (CGD-SE) · Activity 168067
10 November 1998 Type not recorded
No type recorded · MSO SAN JUAN · USCG Southeast District (CGD-SE) · Activity 212161
3 February 1997 Type not recorded
No type recorded · MSU LAKE CHARLES · USCG Heartland District (CGD-H) · Activity 770861
22 January 1997 Type not recorded
No type recorded · MSU LAKE CHARLES · USCG Heartland District (CGD-H) · Activity 201052
29 December 1995 Uninspected Towing Vessel · MARPOL Annex V Examination · MARPOL Annex I Examination
Physical examination · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 1185814
12 December 1995 Type not recorded
No type recorded · MSO SAN JUAN · USCG Southeast District (CGD-SE) · Activity 190956
12 December 1995 Type not recorded
No type recorded · MSO SAN JUAN · USCG Southeast District (CGD-SE) · Activity 757599
10 August 1995 Type not recorded
No type recorded · MSO SAN JUAN · USCG Southeast District (CGD-SE) · Activity 757632
9 August 1995 Type not recorded
No type recorded · MSO SAN JUAN · USCG Southeast District (CGD-SE) · Activity 190954
30 May 1995 Type not recorded
No type recorded · MSU LAKE CHARLES · USCG Heartland District (CGD-H) · Activity 752010
25 May 1995 Type not recorded
No type recorded · MSU LAKE CHARLES · USCG Heartland District (CGD-H) · Activity 190955
9 November 1993 Type not recorded
No type recorded · MSO PHILADELPHIA · USCG East District (CGD-E) · Activity 686668
26 October 1993 Type not recorded
No type recorded · MSO PHILADELPHIA · USCG East District (CGD-E) · Activity 42779
31 December 1991 Type not recorded
No type recorded · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 45864

Deficiency record · 3

13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Operation of machinery
Issued 9 June 2026 Resolved
Each towing vessel must have a means to monitor and control the amount of thrust, rudder angle and (if applicable) direction of thrust at each operating station. Vessel lost primary steering.
Action required: 16 - Rectify deficiencies w/in 14 days
Due 23 June 2026
Resolved 12 June 2026
Resolution: Vessel submitted class report attesting to repair of steering systems.
10 - Safety of Navigation › N/A - No Subsystem › Automatic Identification System (AIS)
Issued 29 August 2018 Resolved
ZERO LENGTH OR BEAM: no dimension information (AIS Antenna Position ABCD values equals 0)
Condition: Invalid
Action required: 705 - Other - as specified
Resolved 3 December 2018
Resolution: Def Cleared
Electrical › Electric Generation Source (service) › Switch
Issued 16 June 2015 Resolved
Main control (fuse) for generator auto switch gear system failed at sea. Manual switching is only way to change generators at this point. Make permanent repair to enable system to work as designed.
Condition: Damaged By Earlier Event
Action required: 17 - Rectify deficiencies prior to departure
Resolved 17 June 2015
Resolution: After initial fuse failure, a 3 amp was installed where a 10 amp fuse was required. It is unknown why the original fuse failed, however, a 10 amp fuse was placed back in system and repeated testing at the dock could not repeat failure.

Casualty record · 17

2 March 2007Routine · role: Involved in a Marine Casualty · activity 2882145
4 June 2010Routine · role: Involved in a Marine Casualty · activity 3814629
25 September 2013Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 4723187
12 April 2014Routine · role: Involved in a Marine Casualty · activity 4835913
14 July 2015Routine · role: Involved in a Marine Casualty · activity 5190592
31 December 2016Routine · role: Involved in a Marine Casualty · activity 6065883
19 January 2017Routine · role: Involved in a Marine Casualty · activity 6079371
7 May 2017Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 6143957
7 January 2018Routine · role: Involved in a Marine Casualty · activity 6366265
16 December 2019Routine · role: Involved in a Marine Casualty · activity 6874887
17 February 2023Routine · role: Involved in a Marine Casualty · activity 7638313
6 March 2023Routine · role: Involved in a Marine Casualty · activity 7646854
30 April 2023Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 7688631
30 June 2023Routine · role: Involved in a Marine Casualty · activity 7734852
13 September 2024Routine · role: Involved in a Marine Casualty · activity 8013807
21 January 2025Routine · role: Involved in a Marine Casualty · activity 8071606
21 January 2025Routine · role: Involved in a Marine Casualty · activity 8072209
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.