SEALION

Towing Vessel · Built 1970s · USCG Heartland District (CGD-H) · Other hulls named SEALION

SEALION is a 1974 towing vessel. The Coast Guard has recorded 12 inspections since 2012, most recently in July 2025, along with 1 casualty investigation in 2022.

Records from 2012 to 2025. Most recent: inspection, 17 July 2025.

Built: 1974
Last inspected: 17 July 2025
Documentation: Case Pending · documentation file of 10 September 2026
Inspections: 12
Deficiencies: 0 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date
Casualties: 1 investigation · 2022
Inspected with: 2 other vessels

Identity

557400

—

WDN4054

128705

Flag

UNITED STATES

MMSI

367530470

Maury page id

psix-128705

Inspections, by type

…physical examinations11

…with no type recorded1

Years with a record 9 calendar years (2012–2025)

The 12 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 Towing Vessel class in Maury's sources begin in 1980.

Documentation record

Registered dimensions (L × B × D)57.2 ft × 22.2 ft × 8.2 ft

Registered tonnagegross 69 / net 55

ITC dimensions (L × B × D)Not recorded

ITC tonnageNot recorded

BuilderMASTER MARINE, INC. · BAYOU LA BATRE-, AL, UNITED STATES · built 1974

Hull materialSteel

PropulsionDiesel Reduction

Hull shapeShip

Hull configurationMonohull

Hailing portMORGAN CITY, LA

Trade endorsementsCoastwise, unrestricted

DocumentationCase Pending · issued 5 June 2025 · expires 30 June 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 it69 - Simplified, Gross Ton
55 - Simplified, Net Ton

Every line above is a field of the National Vessel Documentation Center's file as served by NOAA Fisheries, dated 10 September 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.

Radio station licence

WDN4054MMSI 367530470 · active · compulsorily equipped · granted 16 September 2022, expires 16 September 2032 · licensed under a name not among this hull’s recorded names (not shown)

WDG3865MMSI 367530470 · expired · compulsorily equipped · granted 15 May 2012, cancelled 30 July 2022 · licensed under a name not among this hull’s recorded names (not shown)

WBC5928MMSI not assigned · expired · compulsorily equipped · granted 18 September 1996, cancelled 3 February 2007

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 · 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.

MR LANDON Towing Vessel · MISLE 197726 · 1 November 2022 · activity 7593832 MIKE H Industrial Vessel · MISLE 1335051 · 1 November 2022 · activity 7593832

Inspection history · 12

17 July 2025 Deficiency Check · COI Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 8188014

27 June 2025 Drydock Exam · Internal Structural Exam · Administrative Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 8168876

28 August 2024 Annual Inspection · MTSA Verification

Physical examination · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 7986633

20 September 2023 Annual Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 7795418

1 November 2022 Type not recorded

No type recorded · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 7593832

20 September 2022 Annual Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 7562730

8 June 2021 MTSA Verification · Annual Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 7219749

13 March 2020 Administrative Inspection · Initial Certification

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6926035

2 April 2018 Industry Initiated Exam · MTSA Verification

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6388603

30 April 2015 Industry Initiated Exam

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 5114126

29 May 2012 Deficiency Check

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 4327470

24 May 2012 Industry Initiated Exam

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 4321384

Deficiency record · 0

No deficiencies recorded against this vessel. This means none were written in the records covered — it is not a statement about the vessel's condition. What a recorded resolution is.

Casualty record · 1

1 November 2022Routine · role: Involved in a Marine Casualty · at ELLENDER BRIDGE (HWY 27) · activity 7593832

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.

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.