SUBSEA RESPONDER IV is a 2006 offshore supply vessel. The Coast Guard has recorded 10 inspections since 2016, most recently in May 2026, along with 3 deficiencies and 4 casualty investigations between 2009 and 2013.
Records from 2009 to 2026. Most recent: inspection, 14 May 2026.
Coast Guard record current through 23 August 2026, retrieved 5 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 2016.
Every line above is a count of records the US Coast Guard wrote, or a date it recorded.
A blank resolution means none was recorded in this data; it does not establish that a
deficiency is outstanding. Years with a record are calendar years in which a record
exists, not years in service. What Maury does
not do.
Tonnage as PSIX records it1257 - Convention (Subpart B), Net Ton 4193 - Regulatory (Subpart C or D), Gross Ton 3500 - Dead Weight, Ton 1257 - Regulatory (Subpart C or D), Net Ton 4193 - Convention (Subpart B), Gross Ton
This hull's Official Number is not in the NVDC file dated 10 August 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.
Vessel history report
Every record for this hull, in one document — $299
Every recorded inspection, 2016 to
2026 for this class, in one chronology · every deficiency, with system, dates
and resolution · operational controls imposed and removed · every name this
hull has been recorded under · the vessels it was inspected alongside, and when
· how its record compares with hulls of similar age and size, as a fact about the
population and never a judgement about this vessel.
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Inspection history · 10
14 May 2026PSC B
Physical examination · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 8371535
4 October 2024PSC B
Physical examination · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 8013734
11 September 2024Administrative Inspection
Administrative · Sector Mobile · USCG Heartland District (CGD-H) · Activity 8000574
13 December 2023Ballast Water Examination · PSC B
Physical examination · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 7838417
23 August 2022Administrative Inspection
Administrative · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 7549126
25 June 2022Type not recorded
No type recorded · Marine Safety Unit Houma · USCG Heartland District (CGD-H) · Activity 7510248
24 May 2022PSC A
Physical examination · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 7438046
7 May 2021Administrative Inspection
Administrative · Marine Safety Unit Lake Charles · USCG Heartland District (CGD-H) · Activity 7193777
07 - Fire Safety › N/A - No Subsystem › Remote Means of control (opening,pumps,ventilation,etc.) Machinery spaces
Issued 14 May 2026Resolved
SOLAS II-2 / 4.2.2.3.4. Oil fuel pipes which if damaged would allow oil to escape from a storage, settling or daily service tank having a capacity of 500L and above the double bottom shall be fitted with a lock or valve directly on the tank capable of being closed form a safe position outside of the space concerned in the event of a fire occuring in the space in which such tanks are situated.
PSCE observed gags installed on 04 quick closing valves for fuel oil service tanks in engine room.
Condition: Placed in Improper Service
Action required: 10 - Deficiency Rectified
Due 14 May 2026
Resolved 14 May 2026
11 - Life Saving Appliances › N/A - No Subsystem › Maintenance and inspections
Issued 14 May 2026Resolved
SOLAS III/20.2 Before the ship leaves port and at all times during the voyage, all life saving appliances shall be in working order and ready for immediate use. Port State Control Examiner observed that the crew was unable to start the rescue boat due to an inoperable battery.
Condition: Improper/Lack of Maintenance
Action required: 10 - Deficiency Rectified
Due 14 May 2026
Resolved 14 May 2026
11 - Life Saving Appliances › N/A - No Subsystem › Rescue boats
Issued 14 May 2026Resolved
SOLAS III/34, LSA 5.1.1.1.1., LSA 4.4.6.11. Means shall be provided for recharging all engine starting radio and searchlight batteries. Radio batteries shall not be used to provide power for engine starting. Means shall be provided for recharging batteries from the ships power supply at a supply voltage not exceeding 50V which can be disconnected at the lifeboat embarkation station, or by means of a solar battery charger. Vessel has no installed means of charging rescue boat starting battery from ships power supply.
Condition: Design Flaw
Action required: 50 - Rectify deficiencies w/in 30 days
Due 13 June 2026
Resolved 1 June 2026
Resolution: Received class report #7647173 showing vessel installed a means to charge the rescue boat battery.
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. Involvement is not fault. The investigation narrative is not published. Source: IIR, through 2026.
Recorded names · 2
DMT EMERALD (2009), SURF CHALLENGER (2013). 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.