MERLIN

Research Vessel · Research Ship class · Built 1980s · USCG Southwest District (CGD-SW) · Other hulls named MERLIN

MERLIN is a 1981 research vessel. The Coast Guard has recorded 30 inspections since 1981, most recently in October 2018, along with 3 deficiencies.

Records from 1981 to 2018. Most recent: inspection, 13 October 2018.

Built: 1981
Last inspected: 13 October 2018
Documentation: Valid · documentation file of 10 September 2026
Inspections: 30
Deficiencies: 3 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date

Identity

641765

—

WDD6426

53378

Flag

UNITED STATES

MMSI

367409000

Maury page id

psix-53378

Inspections, by type

…physical examinations15

…administrative events6

…with no type recorded9

Years with a record 19 calendar years (1981–2018)

The 30 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 8 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 Research Ship class in Maury's sources begin in 1980.

Documentation record

Registered dimensions (L × B × D)91.2 ft × 19.5 ft × 2.5 ft

Registered tonnagegross 87 / net 59

ITC dimensions (L × B × D)Not recorded

ITC tonnageNot recorded

BuilderSWIFTSHIPS LAFITTE INC · LAFITTE, LA, UNITED STATES · built 1981

Hull materialAluminum

PropulsionDiesel Reduction

Hull shapeNot recorded

Hull configurationNot recorded

Hailing portSAN DIEGO, CA

Trade endorsementsCoastwise, unrestricted, Recreational, Registry

DocumentationValid · issued 1 May 2026 · expires 31 May 2027

Service, as the file records itResearch Vessel

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

Tonnage as PSIX records it87 - Regulatory (Subpart C or D), Gross Ton
59 - 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 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

WDK5367MMSI 367409000 · active · compulsorily equipped · granted 27 October 2018, expires 27 October 2028

WDD6426MMSI 367409000 · expired · compulsorily equipped · granted 14 March 2007, cancelled 20 May 2017

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.

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 · 30

13 October 2018 Type not recorded

No type recorded · Station San Diego · USCG Southwest District (CGD-SW) · Activity 6561913

10 January 2012 Administrative Inspection

Administrative · Sector San Diego · USCG Southwest District (CGD-SW) · Activity 4222222

25 June 1999 Administrative

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 884536

24 June 1999 Administrative

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1193100

10 December 1997 Re-Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1372057

7 January 1997 Hull Examination · COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1380726

22 February 1996 Examination of Repairs

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1192976

3 January 1996 COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1431588

5 January 1995 COI Inspection · Hull Examination

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1472401

6 January 1994 COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1370756

7 January 1993 COI Inspection · Hull Examination

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1471084

6 July 1992 Drydock Extension

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1471285

6 January 1992 COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 945514

26 June 1991 Administrative

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 915142

10 January 1991 COI Inspection · Hull Examination

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1226021

21 November 1990 Type not recorded

No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 500784

8 October 1990 Type not recorded

No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 449232

6 February 1990 COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 917298

30 August 1989 Examination of Repairs · Hull Examination

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1194113

9 February 1989 COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1348229

11 February 1988 COI Inspection · Hull Examination

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1336636

5 August 1987 Administrative

Administrative · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1030385

10 February 1987 COI Inspection

Physical examination · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1002493

16 June 1986 Type not recorded

No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1300777

29 May 1986 Type not recorded

No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 985286

13 February 1986 COI Inspection · Credit Drydock

Physical examination · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 992766

8 February 1985 Type not recorded

No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 979631

8 February 1984 Type not recorded

No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 970986

22 October 1982 Type not recorded

No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 967033

21 October 1981 Type not recorded

No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1274856

Deficiency record · 3

Navigation

Issued 10 December 1997 Resolved

1. Repair as original the retaining pin holes on the starboard end of the jockey bar and on the inboard end of the steering hydraulic ram.

Condition: Unknown
Due 10 December 1997
Resolved 15 December 1997

Documentation

Issued 5 January 1995 Resolved

PROVIDE ONBOARD A VALID FCC RADIO SAFETY CERTIFICATE.

Condition: Unknown
Due 5 January 1995
Resolved 5 January 1995

Documentation

Issued 29 May 1986 Resolved

PROVIDE VALID MAILING ADDRESS FOR VESSEL'S CURRENT OPERATOR. MAIL SENT TO PRESENT ADDRESS ON COI IS RETURNED AS UNDERLIVERABLE.

Condition: Unknown
Due 29 May 1986
Resolved 29 May 1986

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.