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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
- Expired · documentation file of 10 September 2026
- Deficiencies
- 3 recorded · 1 without a recorded resolution
- Controls
- None recorded without a removal date
- Casualties
- 2 investigations · 2006–2013
Identity
647228
8991580 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here
WDK4068
206579
Flag
UNITED STATES
368051530
Maury page id
psix-206579
Inspections, by type
…with no type recorded7
Years with a record
15 calendar years (1993–2024)
The 26 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)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 shapeNot recorded
Hull configurationNot recorded
Hailing portPANAMA CITY, FL
Trade endorsementsCoastwise, unrestricted, Registry
DocumentationExpired · issued 30 June 2004
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
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 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
WDK4068MMSI 368051530 · active · compulsorily equipped · granted 24 July 2018, expires 24 July 2028
WDE4727MMSI 367357080 · terminated · compulsorily equipped · granted 16 May 2008, cancelled 19 July 2018
WCY4882MMSI 367086540 · expired · compulsorily equipped · granted 23 June 1998, cancelled 23 August 2008
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 · 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 1666Inspection 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.
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.
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.
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, 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.
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.