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SIKU

Towing Vessel · Built 1990s · USCG Arctic District (CGD-A) · Other hulls named SIKU · CROWLEY MARINE SERVICES, INC. operator of record, 2023

SIKU is a 1995 towing vessel. The Coast Guard has recorded 31 inspections since 1997, most recently in February 2025, along with 13 deficiencies and 9 casualty investigations between 2006 and 2024.

Records from 1997 to 2025. Most recent: inspection, 20 February 2025.

Built
1995
Last inspected
20 February 2025
Documentation
Valid · documentation file of 10 September 2026
Inspections
31
Deficiencies
13 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date
Casualties
9 investigations · 2006–2024
Inspected with
4 other vessels

Identity

US Official No.
1029298
IMO number
9107837 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here
Call sign
WCQ6174
MISLE id
419593
Flag
UNITED STATES
MMSI
366888910
Maury page id
psix-419593

Inspections, by type

…physical examinations7
…administrative events6
…with no type recorded18
Years with a record 14 calendar years (1997–2025)
The 31 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)81.8 ft × 28.5 ft × 12.0 ft
Registered tonnagegross 117 / net 80
ITC dimensions (L × B × D)81.8 ft × 28.5 ft × 12.0 ft
ITC tonnagegross 210 / net 63
BuilderMCDERMOTT INC · AMELIA, LA, UNITED STATES · built 1995
Hull materialSteel
PropulsionDiesel
Hull shapeNot recorded
Hull configurationNot recorded
Hailing portSAN FRANCISCO, CA
Trade endorsementsCoastwise, unrestricted, Registry
DocumentationValid · issued 30 January 2026 · 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 it80 - Regulatory (Subpart C or D), Net Ton
63 - Convention (Subpart B), Net Ton
117 - Regulatory (Subpart C or D), Gross Ton
210 - Convention (Subpart B), Gross 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

WCQ6174MMSI 366888910 · active · compulsorily equipped · granted 4 March 2025, expires 4 April 2035
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 · 4

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.

SESOK Towing Vessel · MISLE 994294 · 13 November 2024 · activity 8319531180-1 Tank Barge · MISLE 679693 · 4 October 2024 · activity 8017363180-1 Tank Barge · MISLE 679693 · 4 May 2024 · activity 7911811180-1 Tank Barge · MISLE 679693 · 31 October 2013 · activity 4745813BUFF ORPINGTON Industrial Vessel · MISLE 46078 · 23 October 2010 · activity 3879243BELLA CATHERINE Towing Vessel · MISLE 72149 · 20 September 2010 · activity 3855618BUFF ORPINGTON Industrial Vessel · MISLE 46078 · 6 April 1997 · activity 187838

Inspection history · 31

20 February 2025 Internal Structural Exam · Deficiency Check · Equivalency · Examination of Repairs · Administrative Inspection · COI Inspection · Drydock Exam
Physical examination · Detached Duty Office Seward · USCG Arctic District (CGD-A) · Activity 8088324
13 November 2024 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 8319531
4 October 2024 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 8017363
15 May 2024 Administrative Inspection
Administrative · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 7918119
5 May 2024 Administrative Inspection
Administrative · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 7906709
4 May 2024 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 7911811
17 April 2024 COI Inspection
Physical examination · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 7885515
25 July 2023 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 7764107
17 April 2023 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 7671332
17 April 2023 Administrative Inspection · Examination of Repairs · Damage Survey
Physical examination · Detached Duty Office Seward · USCG Arctic District (CGD-A) · Activity 7674829
12 August 2022 Administrative Inspection
Administrative · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 7531752
19 October 2021 Administrative Inspection · In-Service Inspection
Physical examination · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 7335580
12 April 2019 Initial Certification · Deficiency Check · COI Inspection
Physical examination · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 6661540
11 April 2019 Type not recorded
No type recorded · Detached Duty Office Seward · USCG Arctic District (CGD-A) · Activity 6686128
9 April 2019 Type not recorded
No type recorded · Detached Duty Office Seward · USCG Arctic District (CGD-A) · Activity 6686040
31 October 2013 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 4745813
9 May 2013 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 4587587
8 May 2012 Administration
Administrative · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 4779869
10 March 2011 Liferaft Servicing
Physical examination · Marine Safety Detachment Kenai · USCG Arctic District (CGD-A) · Activity 3961709
23 October 2010 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 3879243
14 October 2010 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 3890019
20 September 2010 Type not recorded
No type recorded · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 3855618
25 March 2010 Type not recorded
No type recorded · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 3704726
21 November 2006 MTSA Verification
Physical examination · Marine Safety Detachment Ketchikan · USCG Arctic District (CGD-A) · Activity 2826674
11 November 2006 Type not recorded
No type recorded · Marine Safety Detachment Ketchikan · USCG Arctic District (CGD-A) · Activity 2827091
6 November 2006 Administrative Inspection
Administrative · Sector Western Alaska and U.S. Arctic · USCG Arctic District (CGD-A) · Activity 2815325
30 January 2004 Security Plan Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2015610
25 May 2000 Type not recorded
No type recorded · MSO ANCHORAGE · USCG Arctic District (CGD-A) · Activity 81360
10 April 1997 Type not recorded
No type recorded · MSD SITKA · USCG Arctic District (CGD-A) · Activity 758026
6 April 1997 Type not recorded
No type recorded · MSD SITKA · USCG Arctic District (CGD-A) · Activity 187838
6 April 1997 Type not recorded
No type recorded · MSD SITKA · USCG Arctic District (CGD-A) · Activity 201062

Deficiency record · 13

07 - Fire Safety › N/A - No Subsystem › Fixed fire extinguishing installation
Issued 13 November 2025 Resolved
All piping, controls, valves, and alarms must be inspected; and the operation of controls, alarms, ventilation shutdowns, and pressure-operated dampers for each fixed fire-extinguishing system and detecting system must be tested, to determine that the system is operating properly. A test of the fixed fire-extinguishing system pressure switch failed to shutdown the power ventilation, remote fuel shutoff valve, main engines and generators. 46 CFR 142.240(a)(5)
Action required: 17 - Rectify deficiencies prior to departure
Resolved 19 November 2025
08 - Alarms › N/A - No Subsystem › Steering gear alarm
Issued 13 November 2025 Resolved
Each towing vessel must have a reliable means to provide notification when an emergency condition exists or an essential system develops problems that require attention. The following alarms must be provided: Low hydraulic steering fluid levels. Starboard outboard hydraulic steering gear failed to alarm upon testing low hydraulic level and produced fault at the alarm panel. 46 CFR 143.230(a)(6)
Action required: 50 - Rectify deficiencies w/in 30 days
Due 13 December 2025
Resolved 11 December 2025
09 - Working and Living Conditions › 092 - Working Conditions › Guards - fencing around dangerous machinery parts
Issued 13 November 2025 Resolved
An exposed hazard such as gears and rotating machinery, must be protected by a cover, guard or rail. Port and Starboard main engine found missing guards over shaft. 46 CFR 144.820
Action required: 50 - Rectify deficiencies w/in 30 days
Due 13 December 2025
Resolved 9 January 2026
02 - Structural Conditions › N/A - No Subsystem › Electrical installations in general
Issued 13 November 2025 Resolved
Electrical systems and equipment must function properly and minimize system failures and fire and shock hazards. Port and starboard distribution panels in engine room found with missing blank covers to prevent shock hazards. 46 CFR 143.400(a)
Action required: 50 - Rectify deficiencies w/in 30 days
Due 13 December 2025
Resolved 11 December 2025
02 - Structural Conditions › N/A - No Subsystem › Electrical installations in general
Issued 13 November 2025 Resolved
An ungrounded distribution system must be provided with a ground detection system located at the main switchboard or distribution panel that provides continuous indication of circuit status to ground. Grounding detection lights at the main switchboard in engine room found inoperable. 46 CFR 143.570(a)
Action required: 50 - Rectify deficiencies w/in 30 days
Due 13 December 2025
Resolved 9 January 2026
02 - Structural Conditions › N/A - No Subsystem › Closing devices/watertight doors
Issued 13 November 2025 Resolved
The Coast Guard may approve any arrangement, fitting, appliance, apparatus, equipment, calculation, information, or test that provides a level of safety equivalent to that established by any specific provision of this subchapter. In accordance with MSC approved equivalency, plan review letter H1-2503069, the lazarette hatch was missing exterior high visibility paint to indicate visual confirmation that the hatch is closed and locked. 46 CFR 136.115(a)
Action required: 50 - Rectify deficiencies w/in 30 days
Due 13 December 2025
Resolved 11 December 2025
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Other (machinery)
Issued 5 May 2024 Resolved
Machinery and electrical systems must be designed and maintained to provide for safe operation of the towing vessel and safety of persons on board under normal and emergency conditions. On May 3, 2023, the SIKU grounded while anchored in the Naknek River causing coolant to leak from the keel cooler system for the port main engine. Conduct repairs of the keel cooler system to the satisfaction of the attending TPO surveyor. 46 CFR 143.205(a)
Condition: Damaged By Earlier Event
Action required: 17 - Rectify deficiencies prior to departure
Resolved 13 May 2024
Resolution: Received final TPO report attesting to permanent repairs to keel cooler.
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Bilge pumping arrangements
Issued 12 April 2019 Resolved
Conducted operational test of bilge pump. Bilge pump shaft was seized. Correct prior to departure.
Condition: Improper/Lack of Maintenance
Action required: 17 - Rectify deficiencies prior to departure
Resolved 18 April 2019
Resolution: Installed new pump and tested satisfactory
Lifesaving › Liferaft Equipment › Water Ration
Issued 10 March 2011 Resolved
Extra Water in Packs
Action required: 705 - Other - as specified
Resolved 10 March 2011
Resolution: LIFERAFT CONDEMNED
Lifesaving › Inflatable Liferafts › Main Buoyancy Chamber
Issued 10 March 2011 Resolved
Cracked Hoses
Action required: 705 - Other - as specified
Resolved 10 March 2011
Resolution: LIFERAFT CONDEMNED
Lifesaving › Inflatable Liferafts › Servicing
Issued 10 March 2011 Resolved
Damaged/ cut equipment bag
Action required: 705 - Other - as specified
Resolved 10 March 2011
Resolution: LIFERAFT CONDEMNED
Lifesaving › Inflatable Liferafts › Floor
Issued 10 March 2011 Resolved
Severe leaks in bottome tubes
Action required: 705 - Other - as specified
Resolved 10 March 2011
Resolution: LIFERAFT CONDEMNED
Lifesaving › Inflatable Liferafts › Inflation Characteristics
Issued 10 March 2011 Resolved
Pressure Relief Valves Blow to High
Action required: 705 - Other - as specified
Resolved 10 March 2011
Resolution: LIFERAFT CONDEMNED

Casualty record · 9

11 November 2006Routine · role: Involved in a Marine Casualty · activity 2827091
20 September 2010Routine · role: Transiting Vicinity of Primary Subject · activity 3855618
23 October 2010Routine · role: Involved in a Marine Casualty · activity 3879243
31 October 2013Routine · role: Involved in a Marine Casualty · activity 4745813
17 April 2023Routine · role: Involved in a Marine Casualty · activity 7671332
25 July 2023Routine · role: Involved in a Marine Casualty · activity 7764107
4 May 2024Routine · role: Involved in a Marine Casualty · activity 7911811
4 October 2024Routine · role: Involved in a Marine Casualty · activity 8017363
13 November 2024Routine · role: Involved in a Marine Casualty · activity 8319531
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.