MAURY USCG vessel records Sign in
← All vessels

LEADER

Towing Vessel · Built 1990s · USCG Southwest District (CGD-SW) · Other hulls named LEADER · VESSEL MANAGEMENT SERVICES, INC. operator of record, 2023

LEADER is a 1998 towing vessel. The Coast Guard has recorded 29 inspections since 2004, most recently in October 2025, along with 4 deficiencies, 1 operational control and 9 casualty investigations between 2007 and 2025.

Records from 2004 to 2025. Most recent: inspection, 20 October 2025.

Built
1998
Last inspected
20 October 2025
Documentation
Valid · documentation file of 10 September 2026
Inspections
29
Deficiencies
4 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date
Casualties
9 investigations · 2007–2025
Inspected with
9 other vessels

Identity

US Official No.
1063760
IMO number
9188568 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here
Call sign
WCY8495
MISLE id
471173
Flag
UNITED STATES
MMSI
366760650
Maury page id
psix-471173

Inspections, by type

…physical examinations9
…administrative events8
…with no type recorded12
Years with a record 15 calendar years (2004–2025)
The 29 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)96.7 ft × 36.0 ft × 15.0 ft
Registered tonnagegross 275 / net 187
ITC dimensions (L × B × D)96.7 ft × 36.0 ft × 15.0 ft
ITC tonnagegross 366 / net 109
BuilderNICHOLS BROTHERS BOAT BUILDERS INC · FREELAND, WA, UNITED STATES · built 1998
Hull materialSteel
PropulsionDiesel Reduction
Hull shapeNot recorded
Hull configurationNot recorded
Hailing portSAN FRANCISCO, CA
Trade endorsementsCoastwise, unrestricted, Registry
DocumentationValid · issued 19 November 2025 · expires 31 December 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 it366 - Convention (Subpart B), Gross Ton
275 - Regulatory (Subpart C or D), Gross Ton
109 - Convention (Subpart B), Net Ton
187 - 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

WCY8495MMSI 366760650 · active · compulsorily equipped · granted 3 November 2018, expires 25 January 2029
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 · 9

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.

MASTER Towing Vessel · MISLE 471162 · 5 December 2021 · activity 7364960LMZ VEGA Freight Ship · MISLE 1104534 · 5 December 2021 · activity 7364960AQUALEGACY Tank Ship · MISLE 1167472 · 2 June 2021 · activity 7221433POLAR ENTERPRISE Tank Ship · MISLE 755556 · 1 June 2021 · activity 7306923DELTA AUDREY Towing Vessel · MISLE 1275108 · 18 January 2020 · activity 7167825NOKEA Towing Vessel · MISLE 137013 · 12 December 2008 · activity 3393957ALBERT CORNELIUS Freight Barge · MISLE 383869 · 12 December 2008 · activity 3393957EL VIGIA Towing Vessel · MISLE 7083 · 6 July 2007 · activity 2987796LORETO Freight Barge · MISLE 704819 · 6 July 2007 · activity 2987796

Inspection history · 29

20 October 2025 Administrative Inspection
Administrative · Sector San Diego · USCG Southwest District (CGD-SW) · Activity 8255597
5 March 2025 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 8088801
16 February 2025 Administrative Inspection · Deficiency Check
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 8080054
16 February 2025 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 8083998
17 March 2024 Type not recorded
No type recorded · Sector San Diego · USCG Southwest District (CGD-SW) · Activity 7900741
9 November 2023 Administrative Inspection · Deficiency Check
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7822383
26 June 2023 COI Inspection
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7689023
15 May 2023 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7721933
29 April 2023 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7690091
4 October 2022 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7571729
5 December 2021 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7364960
2 June 2021 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7221433
1 June 2021 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7306923
13 April 2021 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7175062
9 April 2021 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7529455
17 December 2020 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7319271
7 February 2020 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 6904968
18 January 2020 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 6892149
18 January 2020 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 7167825
17 December 2018 Initial Certification · Administrative Inspection
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 6625465
31 May 2017 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 6162555
24 June 2011 Damage Survey
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 4056202
5 November 2010 Industry Initiated Exam
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3885673
19 August 2009 MTSA Verification
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3571943
12 December 2008 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3393957
11 October 2007 MTSA Verification
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3078752
6 July 2007 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 2987796
18 April 2006 MTSA Verification
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 2627400
30 January 2004 Security Plan Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2013630

Deficiency record · 4

13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Propulsion main engine
Issued 5 March 2025 Resolved
Machinery and electrical systems must be designed and maintained to provide for safe operation of the towing vessel and safety of persons onboard under normal and emergency conditions. MI notified of a low coolant alarm on the port main engine, causing the vessel to shut the main down to effect repairs.
Action required: 60 - Rectify deficiencies prior to movement
Due 5 March 2025
Resolved 6 March 2025
Resolution: Vessel identified the leak and tightened the coolant hose. ABS verified proper repairs and operation of the port main.
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Propulsion main engine
Issued 16 February 2025 Resolved
Machinery and electrical systems must be designed and maintained to provide for safe operation of the towing vessel and safety of persons onboard under normal and emergency conditions. Vessel reported a loss of power to both main diesel engines.
Action required: 60 - Rectify deficiencies prior to movement
Due 21 February 2025
Resolved 16 February 2025
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Propulsion main engine
Issued 9 November 2023 Resolved
Propulsion machinery, including main engines, reduction gears, shafting, bearings, and electrical equipment and systems, must:(3) Have suitable propulsion controls to provide the operator full control at each operating station. Vessel experienced a loss of propulsion on the Port MDE. Submit a technician's report and TPO report attesting to proper repairs to the Port engine, to the satisfaction of an attending USCG Marine Inspector. 46 cfr 143.205 (c) (3)
Condition: Design Flaw
Action required: 60 - Rectify deficiencies prior to movement
Resolved 9 November 2023
Resolution: Vessel submitted satisfactory technician and TPO report.
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Other (machinery)
Issued 18 January 2020 Resolved
Loss of steering
Action required: 705 - Other - as specified
Due 20 January 2020
Resolved 19 January 2020
Resolution: Class society ABS verified temporary repairs and conducted satisfactory sea trials. As per TSMS, ABS will continue to oversee final repairs with OEM parts.

Casualty record · 9

6 July 2007Routine · role: Transiting Vicinity of Primary Subject · activity 2987796
12 December 2008Routine · role: Involved in a Marine Casualty · activity 3393957
18 January 2020Routine · role: Involved in a Marine Casualty · activity 7167825
9 April 2021Routine · role: Involved in a Marine Casualty · activity 7529455
1 June 2021Routine · role: Involved in a Marine Investigation (non-casualty) · 1 injured · activity 7306923
2 June 2021Routine · role: Involved in a Marine Casualty · activity 7221433
5 December 2021Routine · role: Sighted in Area · activity 7364960
15 May 2023Routine · role: Acknowledged Pollution Source · activity 7721933
16 February 2025Routine · role: Involved in a Marine Casualty · activity 8083998
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.