← All vessels
TRISTAN K
TRISTAN K is a 2011 towing vessel. The Coast Guard has recorded 12 inspections since 2011, most recently in January 2025, along with 2 casualty investigations between 2016 and 2021.
Records from 2011 to 2025. Most recent: inspection, 30 January 2025.
- Built
- 2011
- Last inspected
- 30 January 2025
- Documentation
- Valid · documentation file of 10 September 2026
- Deficiencies
- 0 recorded · 0 without a recorded resolution
- Controls
- None recorded without a removal date
- Casualties
- 2 investigations · 2016–2021
Identity
1232889
9636773 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here
WDF7657
1115331
Flag
UNITED STATES
367486750
Maury page id
psix-1115331
Inspections, by type
…with no type recorded3
Years with a record
10 calendar years (2011–2025)
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)90.5 ft × 39.3 ft × 16.4 ft
Registered tonnagegross 257 / net 175
ITC dimensions (L × B × D)90.5 ft × 39.3 ft × 16.4 ft
ITC tonnagegross 399 / net 119
BuilderWASHBURN & DOUGHTY ASSOCIATES INC · EAST BOOTHBAY, ME, UNITED STATES · built 2011
Hull materialSteel
PropulsionDiesel Reduction
Hull shapeNot recorded
Hull configurationNot recorded
Hailing portWILMINGTON, DE
Trade endorsementsCoastwise, unrestricted, Registry
DocumentationValid · issued 6 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 it257 - Regulatory (Subpart C or D), Gross Ton
399 - Convention (Subpart B), Gross Ton
175 - Regulatory (Subpart C or D), Net Ton
119 - Convention (Subpart B), Net Ton
399 - Convention (Subpart B), Gross Ton
175 - Regulatory (Subpart C or D), Net Ton
119 - 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 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
WDF7657MMSI 367486750 · active · compulsorily equipped · granted 5 February 2021, expires 20 April 2031
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.
Inspection history · 12
30 January 2025
COI Inspection
Physical examination · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 8062557
3 January 2025
TPO Audit
Administrative · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 8048761
12 June 2021
Damage Survey
Physical examination · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 7225027
12 June 2021
Type not recorded
No type recorded · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 7239644
14 January 2020
Administrative Inspection · Initial Certification
Physical examination · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 6888945
13 December 2019
TPO Audit
Administrative · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 6870579
19 July 2017
Industry Initiated Exam · MTSA Verification · Administration
Physical examination · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 6198581
8 August 2016
Type not recorded
No type recorded · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 5966554
19 April 2015
Type not recorded
No type recorded · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 5107242
21 July 2014
Industry Initiated Exam
Physical examination · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 4930114
29 August 2012
Deficiency Check
Physical examination · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 4449235
13 July 2011
MTSA Verification · Industry Initiated Exam
Physical examination · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 4081231
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 · 2
8 August 2016Routine · role: Acknowledged Pollution Source · activity 5966554
12 June 2021Routine · role: Involved in a Marine Casualty · activity 7239644
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.