DUPLICATE OF Q4000 (ON 1122763, IMO 8767123) is a mobile offshore drilling unit. The Coast Guard has recorded 2 inspections since 2001, most recently in October 2006, along with 2 deficiencies.
Records from 2001 to 2006. Most recent: inspection, 10 October 2006.
This is an administrative record, not a vessel. The Coast Guard created this MISLE entry and then marked it as superseded — the name itself says which record it points to. It is kept here because it exists in the record and nothing is deleted, but the inspection history of the hull lives under the other entry.
The 2 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 20 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.
Share this recordDownload vessel cardDownload QRMaury, US Coast Guard vessel record for DUPLICATE OF Q4000 (ON 1122763, IMO 8767123), retrieved 18 September 2026. mauryrecords.com/v/psix-23659.html
Documentation record
Tonnage as PSIX records itNot recorded
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
No FCC ship-station licence is recorded against this Official Number in the file of
6 September 2026. That is a fact about the licence file, not about the radio.
A report is not offered for this hull: Its record holds only 1 of the seven kinds of material a report is built from: inspections, deficiencies, operational controls, tow-unit appearances, casualty records, dimensions and documentation. That is a statement about the record, not about the vessel. Reports.
Inspection history · 2
10 October 2006Damage Survey
Physical examination · Marine Safety Unit Galveston · USCG Heartland District (CGD-H) · Activity 2801818
1 April 2001Type not recorded
No type recorded · Marine Safety Unit Brownsville · USCG Heartland District (CGD-H) · Activity 1060495
Make permanent repairs to top outboard starboard forward column in way of ballast tank. Replace approximately 3 ft by 15 ft damaged top corner of column and associated handrail. Provide NDT report to OCMI.
Action required: 705 - Other - as specified
Due 15 October 2006
Resolved 13 October 2006
Resolution: Received class report for repairs by ABS.
Make permanent repairs to starboard helideck safety netting. Replace aft starboard conrner of helideck netting and netting structure. Provide NDT report of helideck main structure bracing to local OCMI.
Action required: 705 - Other - as specified
Due 15 October 2006
Resolved 13 October 2006
Resolution: Received class report from ABS.
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.