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DC IV

Offshore Supply Vessel · Offshore class · Built 2000s · USCG Heartland District (CGD-H)

DC IV is a 2000 offshore supply vessel. The Coast Guard has recorded 22 inspections since 2001, most recently in January 2018, along with 28 deficiencies — 2 with no resolution recorded —, 1 operational control and 4 casualty investigations between 2006 and 2009.

Records from 2001 to 2018. Most recent: inspection, 25 January 2018.

Built
2000
Last inspected
25 January 2018
Documentation
Not in the documentation file of 10 September 2026
Inspections
22
Deficiencies
28 recorded · 2 without a recorded resolution
Controls
None recorded without a removal date
Casualties
4 investigations · 2006–2009
Also recorded as
1 other name

Identity

US Official No.
1104180
IMO number
8964381 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here
Call sign
WDH6164
MISLE id
17223
Flag
UNITED STATES
MMSI
366800580, 366918450 (licence lapsed)
Maury page id
psix-17223

Inspections, by type

…physical examinations14
…administrative events4
…with no type recorded4
Years with a record 13 calendar years (2001–2018)
The 22 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.

This record may be incomplete: the most recent inspection recorded for this vessel was 8 years ago. Maury shows what the Coast Guard recorded, not whether the vessel has been inspected since, is still in service, or what condition it is in. 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 Offshore class in Maury's sources begin in 1978.

Documentation record

Tonnage as PSIX records it370 - Convention (Subpart B), Gross Ton
96 - Regulatory (Subpart C or D), Gross Ton
111 - Convention (Subpart B), Net Ton
65 - Regulatory (Subpart C or D), Net Ton
This hull's Official Number is not in the NVDC file dated 10 September 2026 as served by NOAA Fisheries, so no documentation record is shown. Absence from that file is a fact about the file, not about the hull.

Radio station licence

WDH6164MMSI 366918450 · expired · compulsorily equipped · granted 5 August 2014, cancelled 5 October 2024
WDH3607MMSI 366918450 · cancelled · voluntarily equipped · granted 8 March 2014, cancelled 28 July 2014
WDB6118MMSI 366918450 · terminated · compulsorily equipped · granted 7 January 2004, cancelled 7 March 2014
WDA3640MMSI 366800580 · expired · compulsorily equipped · granted 13 February 2001, cancelled 16 April 2011
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 · 22

25 January 2018 Administrative Inspection
Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6343814
26 April 2017 Administrative Inspection
Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6139962
4 April 2017 Annual Inspection · Administrative Inspection
Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 6117839
18 February 2016 Administrative Inspection · COI Inspection
Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 5817019
4 February 2016 Hull Examination · Administrative Inspection · Internal Structural Exam
Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 5809654
3 February 2012 Annual Inspection · MTSA Verification · Commercial Dive Inspection
Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 4263771
21 December 2010 Internal Structural Exam · Examination of Repairs · Commercial Dive Inspection · MTSA Verification · Drydock Exam · Hull Examination · Deficiency Check · COI Inspection
Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3914283
12 January 2010 MTSA Verification · Re-Inspection
Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 3662868
30 December 2008 Periodic Inspection · Hull Examination · Examination of Repairs
Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3386261
31 July 2008 Damage Survey
Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 3285239
30 July 2008 Type not recorded
No type recorded · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3659909
22 January 2008 Commercial Dive Inspection · Re-Inspection
Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 3159087
8 January 2007 Re-Inspection · MTSA Verification · Ballast Water Examination
Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 2868632
26 August 2006 Type not recorded
No type recorded · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 2761793
7 January 2005 Security Plan Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2270577
7 January 2005 MTSA Verification · Annual Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2270587
6 January 2005 Type not recorded
No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2270238
14 January 2004 Administrative Inspection
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1984822
17 November 2003 Re-Inspection · Hull Examination
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1949547
2 January 2003 Re-Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1725067
8 February 2002 Re-Inspection
Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 1485082
24 January 2001 Type not recorded
No type recorded · CGC POINT BAKER · USCG Heartland District (CGD-H) · Activity 1520998

Deficiency record · 28

Operations/Management › Vessel Activity › Other
Issued 4 April 2017 No resolution recorded
Dive equipment not tested as required. Can not operate dive equipment until equipment recertified. Must be remedied prior to dive operations.
Condition: Improper/Lack of Maintenance
Action required: 705 - Other - as specified
Lifesaving › Launching Appliances › Davit
Issued 4 April 2017 No resolution recorded
Rescue boat davit needs to be of an approved type and must be fitted with a power winch motor; prior to next drydocking (14JAN2019).
Condition: Improper Installation
Action required: 705 - Other - as specified
Lifesaving › Inflatable Liferafts › Not on Board
Issued 18 February 2016 Resolved
Install liferafts (one port and one stbd) and float free devices.
Action required: 17 - Rectify deficiencies prior to departure
Due 18 February 2016
Resolved 22 February 2016
Resolution: Liferafts installed properly.
Engineering › Diesel Engine (auxiliary) › Injector (fuel injection)
Issued 18 February 2016 Resolved
Repair stbd generator fuel pressure lines and fittings.
Action required: 17 - Rectify deficiencies prior to departure
Due 18 February 2016
Resolved 22 February 2016
Resolution: Stbd generator fuel pressure lines and fittings repaired.
Operations/Management › Drills/Instruction › Launching/Recovery of Survival Craft
Issued 18 February 2016 Resolved
Conduct drills (Fire, MOB, abandon ship).
Action required: 17 - Rectify deficiencies prior to departure
Due 18 February 2016
Resolved 22 February 2016
Resolution: All drills conducted satisfactorily.
Electrical › Lighting (emergency) › Battery Operated Lantern
Issued 18 February 2016 Resolved
Demonstrate E-lighting during loss of power.
Action required: 17 - Rectify deficiencies prior to departure
Due 18 February 2016
Resolved 22 February 2016
Resolution: Emergency lighting sat.
Stability › Watertight Integrity › Watertight Subdivision Standard
Issued 18 February 2016 Resolved
Properly adjust watertight doors.
Action required: 17 - Rectify deficiencies prior to departure
Due 18 February 2016
Resolved 22 February 2016
Resolution: All watertight doors repaired.
Operations/Management › Navigation Safety › Carriage of Charts and Publications
Issued 18 February 2016 Resolved
Provide updated navigation charts of the vessel's operating areas.
Action required: 705 - Other - as specified
Due 18 February 2016
Resolved 18 February 2016
Resolution: Vsl representative provided order receipt for numerious area charts.
Electrical › Electric Generation Source (service) › Generator
Issued 18 February 2016 Resolved
Repair exhaust lagging on port generator.
Action required: 705 - Other - as specified
Due 18 February 2016
Resolved 18 February 2016
Resolution: Lagging replaced by generator service technician with vsl crew present.
Lifesaving › Lifejacket/PFD (Type I) › Lights
Issued 18 February 2016 Resolved
PFD chem lights expired.
Due 18 February 2016
Resolved 18 February 2016
Resolution: Updated chem lights fitted during inspection.
Communications › Alarms/Indicators › Engine RPM Gauge/Indicator
Issued 18 February 2016 Resolved
Repair stbd main engine tachometer.
Action required: 705 - Other - as specified
Due 18 February 2016
Resolved 18 February 2016
Resolution: Repaired during inspection.
Engineering › Fuel Oil Service System › Piping
Issued 3 February 2012 Resolved
Provide approved flexible non-metallic fuel hoses for prime movers on back deck of vessel.
Action required: 705 - Other - as specified
Resolved 3 February 2012
Documentation › Certificates/Documents › International Tonnage Certificate
Issued 21 December 2010 Resolved
Provide a tonnage domestic tonnage cert issued by a recognized classification socitety.
Action required: 705 - Other - as specified
Due 14 February 2011
Resolved 3 February 2012
Lifesaving › Lifebuoys › Serviceable
Issued 21 December 2010 Resolved
Replace the grab lines on the port superstucture ring buoy.
Action required: 705 - Other - as specified
Due 14 February 2011
Resolved 3 February 2012
Engineering › Pressure Vessel › Relief Valve
Issued 21 December 2010 Resolved
Provide annual relief valve testing of the stbd P/V in aft Engine room.
Condition: Improper/Lack of Maintenance
Action required: 705 - Other - as specified
Due 14 February 2011
Resolved 3 February 2012
Lifesaving › Lifefloat › Float-free Link
Issued 12 January 2010 Resolved
Provide weak-link with service tag and correct breaking strengh.
Action required: 17 - Rectify deficiencies prior to departure
Resolved 14 January 2010
Communications › Alarms/Indicators › General Alarm
Issued 12 January 2010 Resolved
General alarm was inop while on emergency power.
Action required: 17 - Rectify deficiencies prior to departure
Resolved 14 January 2010
Documentation › Safety/Response Plans/Programs › Fire Control Plans
Issued 15 January 2009 Resolved
Provide an updated approved fire and safety plan to the satisfaction of an attending Coast Guard inspector.
Due 15 February 2009
Resolved 14 January 2011
Resolution: Approved fire safety plan was located on messdeck, approved by MSU Houma inspector P. FLood on 30 Mar 2009.
Lifesaving › Lifebuoys › Not on Board
Issued 14 January 2009 Resolved
Provide 02 ring buoys to bring total to 08 prior to sailing.
Action required: 17 - Rectify deficiencies prior to departure
Resolved 15 January 2009
Navigation › Piloting/Steering › Marine Charts
Issued 14 January 2009 Resolved
Provide updated charts of vessel's operating area.
Action required: 17 - Rectify deficiencies prior to departure
Resolved 15 January 2009
Personnel › Certificates/Documents/Licenses › License, Mate
Issued 14 January 2009 Resolved
Provide a licenses mate prior to sailing.
Action required: 17 - Rectify deficiencies prior to departure
Resolved 15 January 2009
Documentation › Safety/Response Plans/Programs
Issued 17 November 2003 Resolved
Several discrepancies identifed on fire control plan. Vessel rep to make necessary corrections and provide to MSO for approval. LEGACY COMPONENT DESC: Fire Control Plans
Condition: Unknown
Action required: 705 - Other - as specified
Due 28 December 2003
Resolved 14 January 2004
Resolution: completed all necessary corrections and delivered to MSO for approval.
Navigation › Piloting/Steering
Issued 8 February 2002 Resolved
PRIOR TO SAILING REPAIR PRIMARY SOUND PRODUCING DEVICE LEGACY COMPONENT DESC: NAV RULES
Condition: Improper/Lack of Maintenance
Due 8 February 2002
Resolved 8 February 2002
Lifesaving › Rescue Boat
Issued 8 February 2002 Resolved
PROPERLY STENCIL RESCUE BOAT IAW 46 CFR 131.855 LEGACY COMPONENT DESC: MARKINGS
Condition: Improper/Lack of Maintenance
Due 8 February 2002
Resolved 8 February 2002
Pollution Prevention/Response › Prevention Equipment
Issued 8 February 2002 Resolved
RENEW SEWAGE VENT FLAME SCREEN LEGACY COMPONENT DESC: SEWAGE VENT
Condition: Improper/Lack of Maintenance
Due 8 February 2002
Resolved 8 February 2002
Communications › Internal Communications System › Sound-powered Telephone
Issued 8 February 2002 Resolved
DEMONSTRATE PROPER OPERATION OF THE ENGINE ROOM SOUND POWERED PHONE VISUAL / AUDIBLE CALL INDICATOR UNDER FINAL EMERGENCY POWER.
Condition: Improper Installation
Due 8 March 2002
Resolved 8 February 2002
Lifesaving › Line-Throwing Appliances › Projectiles
Issued 8 February 2002 Resolved
PROVIDE LINE THROWING APPLIANCEAND ASSOC EQUIP IAW 46 CFR 170
Condition: Improper Installation
Action required: 705 - Other - as specified
Due 8 March 2002
Resolved 10 January 2005
Construction/Loadline › Structures › Door
Issued 8 February 2002 Resolved
PROPERLY STENCIL ALL WATERTIGHT DOORS
Condition: Improper/Lack of Maintenance
Due 8 February 2002
Resolved 8 February 2002

Casualty record · 4

26 August 2006Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 dead · activity 2761793
30 July 2008Routine · role: Involved in a Marine Casualty · activity 3659909
7 October 2009Routine · role: Involved in a Marine Casualty · activity 3610989
16 October 2009Routine · role: Involved in a Marine Investigation (non-casualty) · serious marine incident, as classified · activity 3617681
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

CAL DIVER IV (2006–2009). 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.