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ALASKAN FRONTIER

Tank Ship · Built 2000s · USCG Northwest District (CGD-NW) · Other hulls named ALASKAN FRONTIER

ALASKAN FRONTIER is a 2004 tank ship. The Coast Guard has recorded 64 inspections since 2004, most recently in December 2025, along with 20 deficiencies, 4 operational controls and 7 casualty investigations between 2005 and 2015.

Records from 2004 to 2025. Most recent: inspection, 10 December 2025.

Built
2004
Last inspected
10 December 2025
Documentation
Valid · documentation file of 10 September 2026
Inspections
64
Deficiencies
20 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date
Casualties
7 investigations · 2005–2015
Inspected with
1 other vessel

Identity

US Official No.
1154199
IMO number
9244659 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here
Call sign
WDP8459
MISLE id
674200
Flag
UNITED STATES
MMSI
366948190
Maury page id
psix-674200

Inspections, by type

…physical examinations26
…administrative events22
…with no type recorded16
Years with a record 15 calendar years (2004–2025)
The 64 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 Tank Ship class in Maury's sources begin in 1980.

Documentation record

Registered dimensions (L × B × D)905.5 ft × 164.0 ft × 91.9 ft
Registered tonnagegross 110,693 / net 52,085
ITC dimensions (L × B × D)905.5 ft × 164.0 ft × 91.9 ft
ITC tonnagegross 110,693 / net 52,085
BuilderNATIONAL STEEL & SHIPBUILDING COMPANY · SAN DIEGO, CA, UNITED STATES · built 2004
Hull materialSteel
PropulsionDiesel Electric
Hull shapeNot recorded
Hull configurationNot recorded
Hailing portPORTLAND, OR
Trade endorsementsCoastwise, unrestricted, Registry
DocumentationValid · issued 9 October 2025 · expires 30 November 2026
Service, as the file records itTank Ship
Hull formpowered (Maury's inference from propulsion, hull shape, material and length, rule hf-1; not a recorded fact)
Tonnage as PSIX records it110693 - Convention (Subpart B), Gross Ton
52085 - Convention (Subpart B), Net Ton
220966 - Displacement, Ton
193050 - Dead Weight, 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

WDP8459MMSI 366948190 · active · compulsorily equipped · granted 16 October 2024, expires 16 October 2034
WDB7815MMSI 366948190 · expired · compulsorily equipped · granted 3 April 2014, cancelled 20 July 2024
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 · 1

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.

SIOUX ARROW Passenger (Inspected) · MISLE 47072 · 23 January 2011 · activity 3942057

Inspection history · 64

10 December 2025 Administrative Inspection
Administrative · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 8281800
12 November 2025 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 8267743
25 August 2025 Deficiency Check · Annual Inspection · ACP Annual Oversight
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 8202095
28 April 2025 Bulk Liquid Transfer Monitor
Physical examination · Sector Corpus Christi · USCG Heartland District (CGD-H) · Activity 8121729
19 April 2025 In-Service Inspection
Physical examination · Marine Safety Unit Lewes · USCG East District (CGD-E) · Activity 8115369
3 April 2025 Deficiency Check
Physical examination · Sector Corpus Christi · USCG Heartland District (CGD-H) · Activity 8109791
23 March 2025 In-Service Inspection · Deficiency Check
Physical examination · Marine Safety Unit Lewes · USCG East District (CGD-E) · Activity 8098247
13 March 2025 Deficiency Check · Administrative Inspection
Physical examination · Sector Miami · USCG Southeast District (CGD-SE) · Activity 8093440
8 March 2025 Administrative Inspection
Administrative · Sector Miami · USCG Southeast District (CGD-SE) · Activity 8090446
19 February 2025 In-Service Inspection · Deficiency Check
Physical examination · Marine Safety Unit Lewes · USCG East District (CGD-E) · Activity 8081738
8 February 2025 Administrative Inspection
Administrative · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 8076772
2 February 2025 Deficiency Check · Administrative Inspection
Physical examination · Marine Safety Unit Texas City · USCG Heartland District (CGD-H) · Activity 8073245
4 December 2024 Administrative Inspection
Administrative · Activities Far East · USCG Oceania District (CGD-O) · Activity 8042962
2 July 2024 Re-Inspection · MTSA/ISPS Verification · ACP COI Oversight · Initial Certification · ISM Oversight · ACP Drydock Oversight
Physical examination · Marine Inspections Unit Singapore · USCG Oceania District (CGD-O) · Activity 7946905
3 August 2018 Administrative Inspection
Administrative · Marine Inspections Unit Singapore · USCG Oceania District (CGD-O) · Activity 6499522
12 March 2018 Administrative Inspection
Administrative · Marine Safety Unit Valdez · USCG Arctic District (CGD-A) · Activity 6370523
29 January 2018 In-Service Inspection
Physical examination · Marine Safety Unit Portland OR · USCG Northwest District (CGD-NW) · Activity 6345378
1 August 2017 Annual Inspection · ACP Annual Oversight
Physical examination · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 6226283
20 July 2016 Annual Inspection
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 5932123
20 July 2015 MTSA/ISPS Verification · ACP COI Oversight
Physical examination · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 5190222
9 October 2014 MARPOL Annex VI Survey · MARPOL Annex V Examination · MARPOL Annex I Examination · ACP Annual Oversight · Re-Inspection · MTSA/ISPS Verification
Physical examination · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 5001471
29 August 2011 In-Service Inspection
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 4137965
27 July 2011 Type not recorded
No type recorded · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 4098789
23 January 2011 Type not recorded
No type recorded · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 3942057
23 January 2011 Type not recorded
No type recorded · Sector Houston/Galveston · USCG Heartland District (CGD-H) · Activity 3954199
10 February 2010 Type not recorded
No type recorded · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 3678460
23 July 2009 Type not recorded
No type recorded · Marine Safety Unit Valdez · USCG Arctic District (CGD-A) · Activity 3543934
29 March 2009 MARPOL Annex VI Survey
Physical examination · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 3439021
18 February 2009 Type not recorded
No type recorded · Marine Safety Unit Valdez · USCG Arctic District (CGD-A) · Activity 3420404
4 January 2009 Administrative Inspection
Administrative · Commandant (CG-CVC) · Activity 3388344
18 December 2008 Type not recorded
No type recorded · Commandant (CG-5P-TI) · Activity 3381985
28 October 2008 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3352854
12 August 2008 Annual Inspection
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3278920
10 July 2008 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3259506
10 July 2008 Type not recorded
No type recorded · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3264195
11 December 2007 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 3113753
1 December 2007 Administrative Inspection
Administrative · Marine Safety Unit Valdez · USCG Arctic District (CGD-A) · Activity 3107883
3 October 2007 MTSA/ISPS Verification · Deficiency Check · Administrative Inspection · ACP Annual Oversight
Physical examination · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 3073579
23 March 2007 Deficiency Check
Physical examination · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 2894468
6 March 2007 ACP Periodic Oversight
Administrative · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 2883051
23 January 2007 Type not recorded
No type recorded · Marine Safety Unit Valdez · USCG Arctic District (CGD-A) · Activity 2861106
9 January 2007 Damage Survey
Physical examination · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 2852887
12 September 2006 MTSA/ISPS Verification · ACP Annual Oversight
Physical examination · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 2777174
10 August 2006 Deficiency Check
Physical examination · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 2743063
4 May 2006 Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2640573
5 April 2006 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 2617407
22 March 2006 Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2607211
21 March 2006 Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2606709
10 January 2006 Administrative Inspection
Administrative · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 2564267
28 October 2005 ACP Annual Oversight
Administrative · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 2523842
28 September 2005 Type not recorded
No type recorded · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 2503518
15 September 2005 Type not recorded
No type recorded · Sector Puget Sound · USCG Northwest District (CGD-NW) · Activity 2508408
11 August 2005 Type not recorded
No type recorded · Commandant (CG-5P-TI) · Activity 2458995
28 July 2005 Type not recorded
No type recorded · MSO SAN FRANCISCO BAY · USCG Southwest District (CGD-SW) · Activity 2462251
27 June 2005 Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2405185
9 June 2005 Security Plan Amendment Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2384584
13 May 2005 Damage Survey
Physical examination · MSO PUGET SOUND · USCG Northwest District (CGD-NW) · Activity 2356630
18 March 2005 Administrative Inspection
Administrative · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 2313604
26 February 2005 Administrative Inspection
Administrative · Sector San Diego · USCG Southwest District (CGD-SW) · Activity 2299731
3 December 2004 Type not recorded
No type recorded · Marine Safety Unit Valdez · USCG Arctic District (CGD-A) · Activity 2254323
15 November 2004 Examination of Repairs
Physical examination · Marine Safety Unit Valdez · USCG Arctic District (CGD-A) · Activity 2241701
27 September 2004 Deficiency Check
Physical examination · Marine Safety Unit Valdez · USCG Arctic District (CGD-A) · Activity 2206857
8 July 2004 Security Plan Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2126075
18 June 2004 ACP COI Oversight · Initial Certification · MTSA/ISPS Verification
Physical examination · MSO SAN DIEGO · USCG Southwest District (CGD-SW) · Activity 2102866

Deficiency record · 20

07 - Fire Safety › N/A - No Subsystem › Fire pumps and its pipes
Issued 25 August 2025 Resolved
The arrangements for the ready availability of water supply shall be: in cargo ships: to the satisfaction of the Administration. Vessel was unable to demonstrate proper operation of the starboard fire pump. Vessel must make repairs to the inoperable fire pump prior to movement.
Condition: Improper/Lack of Maintenance
Action required: 60 - Rectify deficiencies prior to movement
Due 25 August 2025
Resolved 26 August 2025
Resolution: Received satisfactory class report
14 - Pollution Prevention › 141 - MARPOL Annex I › Control of discharge
Issued 23 March 2025 Resolved
The operator of a vessel with a capacity of 250 or more barrels of oil, hazardous material, or liquefied gas as regulated in Table 4 of 46 CFR part 154 shall provide transfer procedures that meet the requirements of this part. Provide a copy of a pre-approved alternative discharge plan, or provide a revised discharge plan for safely discharging the remaining oil in the cargo tanks while the eductor is blanked off and not in use for review and approval by USCG and RO prior to cargo operations. 33CFR155.720
Action required: 705 - Other - as specified
Due 24 March 2025
Resolved 24 March 2025
Resolution: Vessel provided transfer procedures.
13 - Propulsion and Auxiliary Machinery › N/A - No Subsystem › Propulsion main engine
Issued 19 February 2025 Resolved
Means shall be provided whereby normal operation of propulsion machinery can be sustained. Reduction in propulsion power on #1 stbd propulsion motor. Ensure starboard propulsion motor is in satisfactory condition and capable of providing full power prior to departure from the [name withheld] Zone. SOLAS CONS 2001 CH. II-1 Reg. 26.3
Condition: Improper/Lack of Maintenance
Action required: 17 - Rectify deficiencies prior to departure
Due 28 February 2025
Resolved 28 February 2025
Resolution: STBD half drive No. 02 had the PCB 101C card replaced in addition to the exciter bridge unit by the vessel crew, and the trip circuit verified. Upon completion the vessel completed ahead to astern movements at anchor with no alarms/failures. All sat.
03 - Water/Weathertight Conditions › N/A - No Subsystem › Machinery space openings
Issued 19 February 2025 Resolved
Where pipes, scuppers, electric cables, etc are carried through watertight bulkheads, arrangements shall be made to ensure the watertight integrity of the bulkheads. Both port and starboard shaft seals failed allowing an excessive amount of sea water through both shaft tubes into the machinery space making the vessel not seaworthy. Ensure shaft seals are replaced with proper seals and sea water entry is minimal amount of water necessary for proper lubrication of shafts prior to departure from Big Stone Anchorage. SOLAS CONS 2001 CH.II-1 Reg. 25.9
Condition: Improper/Lack of Maintenance
Action required: 17 - Rectify deficiencies prior to departure
Due 28 February 2025
Resolved 28 February 2025
Resolution: Wartsila technicians attended the vessel and replaced the existing upgraded MG seals with G132 faces with the original G82 seal material on the both Port and STBD shaft assemblies. Shaft rotation and maneuvering all sat.
06 - Cargo Operations Including Equipment › N/A - No Subsystem › Cargo operation
Issued 4 December 2024 Resolved
Wiring methods for hazardous locations. Each cable entrance into explosion proof or flameproof equipment must be made with approved seal fittings, termination fittings or glands that meet the requirements of 111.105-9. All thermal couple fittings on cargo pumps, stripping pumps and COW pumps and vibration monitoring devices need to be inspected and where needed renewed packing glands and wiring connections shall be repaired replaced.
Action required: 701 - Prior to carriage of passengers/cargo
Resolved 18 December 2024
Resolution: Received an ABS Class report clearing this outstanding deficiency the finding number has been entered under the deficiency description.
06 - Cargo Operations Including Equipment › N/A - No Subsystem › Cargo operation
Issued 4 December 2024 Resolved
Each tank ship to which this subpart applies must have an inert gas system that meets the requirements of this subpart and is approved in accordance with 46CFR50.20. The attending MI noted two soft patches on the IGG combustion chamber salt water cooling pipe. 46CFR32.53-10(a)
Action required: 701 - Prior to carriage of passengers/cargo
Resolved 18 December 2024
Resolution: Received an ABS Class report clearing this outstanding deficiency the finding number has been entered under the deficiency description.
06 - Cargo Operations Including Equipment › N/A - No Subsystem › Cargo operation
Issued 4 December 2024 Resolved
Each vapor connection flange face must have a permanent stud projecting outward that is. 5" diameter and 1" long. Attending MI noted that the port side fwd and aft cargo manifold vapor studs were not permanent and that the starboard side was missing both studs (4 total). 46CFR39.2001(j)
Action required: 701 - Prior to carriage of passengers/cargo
Resolved 19 December 2024
Resolution: Received an ABS Class report clearing this outstanding deficiency the finding number has been entered under the deficiency description.
07 - Fire Safety › N/A - No Subsystem › Means of escape
Issued 4 December 2024 Resolved
On all tank ships where the plans and arrangements will possibly permit, all passageways leading to living quarters, or places where anyone may be regularly employed, shall be provided with not less than two avenues of escape so located that if one such avenue is not available another may be. Attending MI noted that the secondary means of escape from the pump-room had extinguished lighting along the egress route. 46CFR32.02-1
Action required: 16 - Rectify deficiencies w/in 14 days
Resolved 19 December 2024
Resolution: Received an ABS Class report clearing this outstanding deficiency the finding number has been entered under the deficiency description.
Lifesaving › Launching Appliances › Davit
Issued 29 August 2011 Resolved
Replace coupling for electric / hydraulic motor as original (for rescue boat recovery davit system).
Condition: Design Flaw
Action required: 705 - Other - as specified
Due 29 October 2011
Resolved 27 September 2011
Resolution: Davit system tested and found sat.
Documentation › Safety/Response Plans/Programs › SOPEP
Issued 26 November 2008 Resolved
-The SOPEP introduction must be amended to indicate the plan has been written in accordance with requirements of Regulation 37 of Annex I.
Due 26 December 2008
Resolved 29 January 2009
Resolution: Above noted deficiency addressed and SOPEP amended. Deficiency no longer outstanding.
Engineering › Generator (propulsion-electric) › Breaker Circuitry
Issued 1 December 2007 Resolved
Repair/replace the half-drive exciter breaker on the starboard shaft motor which failed to close resulting in reduction of RPM's from 82 to approximately 70 at full sea speed. Provide class report attesting to sat repair to cognizant OCMI at next US port call.
Condition: Unknown
Action required: 705 - Other - as specified
Due 1 December 2007
Resolved 11 December 2007
Resolution: Received satisfactory ABS Class report #LA923562. Breaker replaced and tested.
Operations/Management › Drills/Instruction › Abandon Ship
Issued 3 October 2007 Resolved
Replace worn and faded lifeboat launching instructions P and S Davits.
Action required: 705 - Other - as specified
Due 3 November 2007
Resolved 26 October 2007
Resolution: Report provided by attending ABS class surveyor.
Personnel › Manning/Qualifications › Minimum Safe Manning
Issued 23 March 2007 Resolved
Provide required live engineroom watch until test of propulsion automation.
Action required: 705 - Other - as specified
Due 8 April 2007
Resolved 27 March 2007
Resolution: Propulsion automation tests complete and to the satisfaction of ABS, report provided to Sector LA/LB with details.
Engineering › Electric Propulsion System › Circuit Breaker (overload/over current protection)
Issued 23 March 2007 Resolved
Conduct test of propulsion limitation system.
Action required: 705 - Other - as specified
Due 8 April 2007
Resolved 27 March 2007
Resolution: ABS witnessed all required tests of the propulsion limitation system and provided a detailed report to Sector LA/LB.
Deck/Cargo › Mooring/Anchoring › Anchor
Issued 9 January 2007 Resolved
Provide ABS certified and tested anchors.
Condition: Design Flaw
Action required: 705 - Other - as specified
Resolved 18 January 2007
Operations/Management › Vessel Safety Management › Company Verification/Review/Evaluation
Issued 5 December 2006 Resolved
Amend PSTP to perform u/w test w/ one propulsion generator on the line & increase demand load beyond rated capacity. Power management should reduce torque to propulsion motor to avoid tripping of on line generator. Test should be for each generator on a regular (annual) basis to satisfy 46 CFR 61.40-6. Requirements applied to whole class. FRONTIER, EXPLORER, NAVIGATOR, LEGEND
Action required: 705 - Other - as specified
Due 1 March 2007
Resolved 28 February 2007
Operations/Management › Vessel Safety Management › Emergency Preparedness
Issued 5 December 2006 Resolved
Amend applicable SMS procedure to require monthly test of UPS start after electrical isolation from SS bus. CG placing requirement for this to take place on entire class of vessels: FRONTIER, EXPLORER, NAVIGATOR, LEGEND.
Action required: 705 - Other - as specified
Due 1 March 2007
Resolved 28 February 2007
Communications › Alarms/Indicators › Rate of Turn Indicator
Issued 5 December 2006 Resolved
Perform applicable FMEA & PSTP tests on all components of the propulsion generator OS alarm/trip circuit after consultation w/ CG & MAN/B& W tech reps. Increase digital sampling frequency for O/S sensor to eliminate intermittent tripping as required by AN/B& W tech rep.
Action required: 705 - Other - as specified
Due 1 March 2007
Resolved 28 February 2007
Engineering › Shafting/Propeller Arrangements › Thrust Bearing
Issued 10 August 2006 Resolved
Prove proper operation of stbd MDE propulsion thrust bearing.
Action required: 705 - Other - as specified
Resolved 12 September 2006
Resolution: ABS Surveyor conducted exam of line shaft bearing, appeared sat and crew will continue monitoring bearing. A class outstanding is still in effect until permanent repair had been effected. Above outstanding requirement is recinded/resolved.
Lifesaving › Lifeboat › Embarkation/Disembarkation Capabilities
Issued 18 June 2004 Resolved
Prove capability of lifeboats to be recovered IAW LSA Code Ch. VI Reg 6.1.1.8.
Action required: 705 - Other - as specified
Due 16 October 2004
Resolved 25 August 2004
Resolution: Set screw set too low. Crew educated on how to adjust wench should this problem arise again in the future.

Casualty record · 7

28 July 2005Routine · role: Involved in a Marine Casualty · activity 2462251
5 August 2009Routine · role: Involved in a Marine Casualty · activity 3556713
10 February 2010Routine · role: Involved in a Marine Casualty · activity 3678460
27 July 2011Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 4098789
4 October 2012Routine · role: Involved in a Marine Casualty · activity 4461064
6 February 2013Routine · role: Involved in a Marine Investigation (non-casualty) · activity 4529429
28 May 2015Routine · role: Involved in a Marine Casualty · activity 5154179
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.