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F W KNOWLES

F W KNOWLES is a 1941 towing vessel. The Coast Guard has recorded 26 inspections since 1993, most recently in March 2024, along with 3 deficiencies — 1 with no resolution recorded — and 2 casualty investigations between 2006 and 2013.

Records from 1993 to 2024. Most recent: inspection, 14 March 2024.

Built
1941
Last inspected
14 March 2024
Documentation
Valid · documentation file of 10 August 2026
Controls
None recorded without a removal date

Identity

8991580
WDK4068
206579
Flag
UNITED STATES
Maury page id
psix-206579

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 recorded7
Years with a record 15 calendar years (1993–2024)
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)95.2 ft × 24.4 ft × 11.6 ft
Registered tonnagegross 148 / net 100
ITC dimensions (L × B × D)Not recorded
ITC tonnageNot recorded
BuilderGULFPORT BOILER&WELDING · PORT ARTHUR, TX, UNITED STATES · built 1941
Hull materialSteel
PropulsionDiesel Reduction
Hull shapeUNSPECIFIED
Hull configurationUNSPECIFIED
Hailing portPANAMA CITY, FL
Trade endorsementsCoastwise, unrestricted, Registry
DocumentationValid · issued 22 May 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 it148 - Regulatory (Subpart C or D), Gross Ton
100 - 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.
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 · 3

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.

MARGARET SUE Tank Barge · MISLE 433358 · 28 June 2006 · activity 2693961MARTIN EXPLORER Towing Vessel · MISLE 447069 · 28 June 2006 · activity 2693961DORIS Towing Vessel · MISLE 117950 · 28 March 1995 · activity 1666

Inspection history · 26

14 March 2024 Administrative Inspection
Administrative · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 7895975
6 March 2024 Administrative Inspection
Administrative · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 7875128
5 February 2024 Drydock Extension · Administrative Inspection
Administrative · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 7860869
14 November 2023 Administrative Inspection
Administrative · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 7824819
4 October 2023 Bulk Liquid Transfer Monitor
Physical examination · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 7803292
3 October 2023 Drydock Extension · Administrative Inspection · Internal Structural Exam
Physical examination · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 7803942
15 December 2022 COI Inspection · Administrative Inspection
Physical examination · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 7605735
19 July 2022 Administrative Inspection
Administrative · Sector Mobile · USCG Heartland District (CGD-H) · Activity 7511348
30 November 2021 Administrative Inspection
Administrative · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 7359552
22 April 2019 Administrative Inspection · Initial Certification
Physical examination · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 6709412
3 April 2013 MARPOL · MTSA Verification · Industry Initiated Exam
Physical examination · Sector Mobile · USCG Heartland District (CGD-H) · Activity 4566325
14 March 2013 Type not recorded
No type recorded · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 4549719
30 June 2009 Administration
Administrative · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 3519542
11 December 2008 Administration
Administrative · Marine Safety Detachment Panama City · USCG Heartland District (CGD-H) · Activity 3380695
7 November 2006 MTSA Verification · Annual Inspection
Physical examination · Sector St Petersburg · USCG Southeast District (CGD-SE) · Activity 2816253
24 October 2006 Security Plan Amendment Review - ASP
Administrative · Marine Safety Center (MSC) · Activity 2806889
28 June 2006 Type not recorded
No type recorded · Sector St Petersburg · USCG Southeast District (CGD-SE) · Activity 2693961
6 October 2004 Administrative Inspection
Administrative · Marine Safety Center (MSC) · Activity 2214977
16 December 2003 Security Plan Review - ASP
Administrative · Marine Safety Center (MSC) · Activity 1971063
25 February 2003 Type not recorded
No type recorded · MSO TAMPA · USCG Southeast District (CGD-SE) · Activity 1749268
24 February 2003 Type not recorded
No type recorded · MSO TAMPA · USCG Southeast District (CGD-SE) · Activity 1748823
9 May 2000 Uninspected Towing Vessel
Physical examination · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 1049882
11 March 1999 Uninspected Towing Vessel
Physical examination · MSO JACKSONVILLE · USCG Southeast District (CGD-SE) · Activity 805774
28 March 1995 Type not recorded
No type recorded · MSO SAN FRANCISCO BAY · USCG Southwest District (CGD-SW) · Activity 1666
2 September 1993 Type not recorded
No type recorded · MSO SAN FRANCISCO BAY · USCG Southwest District (CGD-SW) · Activity 644574
25 August 1993 Type not recorded
No type recorded · MSO SAN FRANCISCO BAY · USCG Southwest District (CGD-SW) · Activity 532148

Deficiency record · 3

02 - Structural Conditions › N/A - No Subsystem › Other (Structural condition)
Issued 6 March 2024 No resolution recorded
Vessel missed DD/ISE due date of 03MAR2024. Vessel prohibited from commercial towing operations until valid COI is issued.
Condition: Improper/Lack of Maintenance
Action required: 705 - Other - as specified
01 - Certificates & Documentation › 011 - Ships Certificates › Certificate of Inspection (COI)
Issued 14 November 2023 Resolved
Vessel lapsed DD/ISE extension date. COI is invalid until satisfactory DD/ISE is completed.
Condition: Improper/Lack of Maintenance
Action required: 701 - Prior to carriage of passengers/cargo
Resolved 2 February 2024
Resolution: Vessel recieved DD/ISE extension to 03 March 2024.
01 - Certificates & Documentation › 011 - Ships Certificates › Certificate of Inspection (COI)
Issued 19 July 2022 Resolved
Based on a external mid-management audit, conducted on 08 February 2022, twenty-four (24) non-conformities were issued. The OCMI has reasonable cause that the vessel's survey is deficient and requires an external survey be completed by the next scheduled survey, with the Coast Guard Marine Inspector present.
Action required: 10 - Deficiency Rectified
Resolved 28 November 2022
Resolution: MAR-K Towing switched to the Coast Guard Option, effective 20 DEC 2022, and will under go a CG inspection.

Casualty record · 2

28 June 2006Routine · role: Involved in a Marine Casualty · activity 2693961
14 March 2013Routine · role: Transiting Vicinity of Primary Subject · serious marine incident, as classified · 1 dead · activity 4549719
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.

Recorded names · 1

CANAVERAL (2006). 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.