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SEDCO 712
SEDCO 712 is a 1983 mobile offshore drilling unit. The Coast Guard has recorded 27 inspections since 1984, most recently in February 1993, along with 70 deficiencies.
Records from 1984 to 1993. Most recent: inspection, 12 February 1993.
- Built
- 1983
- Last inspected
- 12 February 1993
- Documentation
- Not in the documentation file of 10 September 2026
- Deficiencies
- 70 recorded · 0 without a recorded resolution
- Controls
- None recorded without a removal date
Identity
656210
WMQH
228688
Flag
UNITED STATES
—
Maury page id
psix-228688
Inspections, by type
…with no type recorded9
Years with a record
9 calendar years (1984–1993)
The 27 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 33 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 it2650 - Dead Weight, Ton
8160 - Regulatory (Subpart C or D), Gross Ton
6178 - Regulatory (Subpart C or D), Net Ton
8160 - Regulatory (Subpart C or D), Gross Ton
6178 - 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
WMQHMMSI not assigned · expired · compulsorily equipped · granted 7 February 1990, cancelled 7 February 1995
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.
A report is not offered for this hull: Its record holds only 2 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 · 27
12 February 1993
Administrative
Administrative · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 839323
10 December 1991
Administrative
Administrative · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1257171
25 October 1991
Administrative
Administrative · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 937588
7 October 1991
COI Inspection
Physical examination · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 939787
30 August 1990
Re-Inspection · Hull Examination
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1232796
7 November 1989
Type not recorded
No type recorded · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1025490
6 October 1989
COI Inspection
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1199839
4 January 1989
Deficiency Check
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1352883
25 October 1988
Type not recorded
No type recorded · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 888123
18 October 1988
MARPOL Annex II Examination · Re-Inspection
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 888294
28 June 1988
Deficiency Check
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1208110
6 June 1988
Deficiency Check
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1201606
12 May 1988
Deficiency Check
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1041496
13 April 1988
Hull Examination · Deficiency Check
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1339725
5 November 1987
Deficiency Check
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1020859
6 October 1987
COI Inspection
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1021027
23 December 1986
Type not recorded
No type recorded · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1310128
18 November 1986
Re-Inspection
Physical examination · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1329360
1 August 1986
Type not recorded
No type recorded · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1003536
28 May 1986
Type not recorded
No type recorded · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1293350
15 May 1986
Type not recorded
No type recorded · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 994287
11 December 1985
Deficiency Check · Credit Drydock
Physical examination · MSO PUGET SOUND · USCG Northwest District (CGD-NW) · Activity 996062
9 November 1985
Deficiency Check
Physical examination · MSO ANCHORAGE · USCG Arctic District (CGD-A) · Activity 1304230
6 October 1985
COI Inspection
Physical examination · MSO ANCHORAGE · USCG Arctic District (CGD-A) · Activity 988764
1 July 1985
Type not recorded
No type recorded · MSO LOS ANGELES/LONG BEACH · USCG Southwest District (CGD-SW) · Activity 1288273
19 December 1984
Type not recorded
No type recorded · MSO ANCHORAGE · USCG Arctic District (CGD-A) · Activity 1284855
11 October 1984
Type not recorded
No type recorded · MSO ANCHORAGE · USCG Arctic District (CGD-A) · Activity 1284853
Deficiency record · 70
Fire Fighting
Issued 7 October 1991
Resolved
REMOVE EXISTING CONTROL PLAN HALON BOTTLE 100LB AND INSTALL 125LB WITH CURRENT DOT APPROVED HYDRO DATE AS PER C.O.I._x001C_ _x001C_ _x001C_
Fire Fighting
Issued 7 October 1991
Resolved
RENEW IN LIKE KIND AND QUALITY OR DEMONSTRATE PROPER OPERATION OF 12FT FIREAPPLICATOR ON HELO DECK._x001C_ _x001C_ _x001C_
Fire Fighting
Issued 7 October 1991
Resolved
PROVIDE REQUIRED SERVICING FOR HYDRO TEST OF PAINT LOCKER FIXED CO2 SYSTEM._x001C_ _x001C_ _x001C_
Engineering
Issued 7 October 1991
Resolved
MAKE SAFETY VALVES AVAILABLE FOR SETTING AND SEALING ON THE 4 AUX. BOILERS,CLEAVER BROOKS PORT AND STBD. AND CLAYTON LOS 81-147 AND LOS 81-148. TO BE COMPLETED TO THE SATISFACTION OF ATTENDING USCG MARINE INSPECTOR._x001C_ _x001C_
Lifesaving
Issued 7 October 1991
Resolved
DEMONSTRATE PROPER OPERATION OF SHALE SHAKER NR21 H2S SENSOR._x001C_ _x001C_ _x001C_ _x001C_
Engineering
Issued 7 October 1991
Resolved
RENEW IN LIKE KIND AND QUALITY 6 RACOR FUEL FILTER SHIELDS TO NR3 DIESEL AND EMERG GENERATOR, 3 EACH.
Electrical
Issued 7 October 1991
Resolved
RENEW IN LIKE KIND AND QUALITY AS ORIGINAL EMERGENCY GENERATOR BATTERIES (40 BLOCK CELL SYSTEM, 24 VOLTS).
Electrical
Issued 7 October 1991
Resolved
RENEW IN LIKE KIND AND QUALITY AS ORIGINAL UNINTERRUPTIBLE POWER SUPPLY BATTERY SYSTEM.(100 BLOCK CELL SYSTEM, 120 VOLTS DC)
Electrical
Issued 7 October 1991
Resolved
PERMANENTLY INSTALL EMERGENCY BATTERY LIGHT FIXTURE IN PASSAGEWAY FROM CREWQUARTERS TO ELECTRICAL SHOP._x001C_ _x001C_ _x001C_
Lifesaving
Issued 7 October 1991
Resolved
DEMONSTRATE PROPER OPERATION OF SHALE SHAKER LOSS OF PURGE ALARM BY VISUAL OR AUDIBLE, MUST BE READILY SEEN OR HEARD._x001C_ _x001C_ _x001C_
Engineering
Issued 7 October 1991
Resolved
RENEW IN LIKE KIND AS ORIGINAL AND DEMONSTRATE PROPER OPERATION OF 4 PRESSURE VESSELS RELIEFS FOR RTP 5.10 #1/TANK 1262, STB APV #1/TANK 1112, STB APV #2/TANK 1111 AND STB APV #3/TANK 1114. PRESSURE VESSELS NOT TO BE USED UNTIL PROPER RELIEFS VALVES FITTED AND TESTED.
Lifesaving
Issued 7 October 1991
Resolved
CONDUCT OPERATIONAL UNDERWAY TESTS OF LIFE BOATS NR 1,2,3, AND 4._x001C_ _x001C_ _x001C_ _x001C_
Documentation
Issued 7 October 1991
Resolved
PROVIDE [name withheld] OF APPROVAL DATE AND CG PORT OF APPROVAL FOR CONSTRUCTION PORTFOLIO 46 CFR 305(HH)._x001C_ _x001C_ _x001C_
Lifesaving
Issued 7 October 1991
Resolved
DEMONSTRATE PROPER OPERATION OF SUSPENSION/RELEASE GEAR, ENG AHEAD/ASTERN, ENG COOLING WATER, WATER SPRAY SYSTEM ON NR 1,2,3, AND 4 LIFEBOATS WHILE CONDUCTING UNDERWAY TESTS._x001C_ _x001C_
Documentation
Issued 7 October 1991
Resolved
PROVIDE [name withheld] OF ANNUAL INSPECTION/TESTS OF 2 MAIN/2 AUX CRANESCONDUCTED BY ABS DURING OCT 91.
Lifesaving
Issued 7 October 1991
Resolved
PROVIDE REQUIRED ANNUAL SERVICING FOR HYDROSTATIC RELEASE UNITS ON LR STATIONS NR1 AND NR3 OR REPLACE WITH UNITS CURRENTLY IN SERVICE.
Lifesaving
Issued 7 October 1991
Resolved
PROVIDE [name withheld] OF CERTIFICATES FOR 3 BFG LIFERAFTS SER 10/LOT29,SER 8/LOT29 AND SER 13/LOT32 FROM D.O.T. APPROVED FACILITY.
Lifesaving
Issued 7 October 1991
Resolved
DEMONSTRATE PROPER OPERATION OF LIFEBOATS PORTABLE RADIO'S SER NR 5183, 5172 AND 5187.
Lifesaving
Issued 7 October 1991
Resolved
RENEW IN LIKE KIND AND QUALITY AS ORIGINAL 12 HAND HELD FLARES FOR CONTROL ROOM._x001C_ _x001C_ _x001C_
Engineering
Issued 30 August 1990
Resolved
MAKE ASME PRESSURE VESSELS NUMBER 997405 AND 991416 (LOW PRESSURE COMPRESSOR AIR DRYERS) AVAILABLE FOR U.S. COAST GUARD INTERNAL EXAMINATION.
Lifesaving
Issued 30 August 1990
Resolved
CONDUCT HYDROSTATIC TEST ON ALL LIFEBOAT ESCAPE AIR BOTTLES. SUBMIT RESULTS TO U.S. COAST GUARD MARINE SAFETY DETACHMENT SANTA BARBARA, CA.
Construction/Loadline
Issued 30 August 1990
Resolved
PROVIDE COPIES OF HOUSTON GEOSCAN GUAGING REPORT, DIVERS SURVEY AND VIDEO TAPE OF UNDERWATER INSPECTION TO U.S. COAST GUARD MARINE SAFETY DETACHMENT SANTA BARBARA (111 HARBOR WAY / SANTA BARBARA, CA 93109-2315)
Lifesaving
Issued 6 October 1989
Resolved
CONDUCT FIRE AND BOAT DRILLS WITHIN ONE WEEK OF TAKING ON INDUSTRIAL PERSONNEL.
Fire Fighting
Issued 6 October 1989
Resolved
DEMONSTRATE PROPER OPERATION OF THE FIRE SCREEN DOOR BORDERING LIVING SPACEPORT SIDE AND MAIN DECK MACHINERY SPACE WITH INBOARD DOOR CLOSED.
Construction/Loadline
Issued 6 October 1989
Resolved
REPAIR FRACTURED GREASE PIPE PENETRATION OF PORT AFT PONTOON AT THE 51 FT LEVEL.
Deck/Cargo
Issued 6 October 1989
Resolved
REPAIR FRACTURED PIPE RACK STBD SIDE OF MAIN DECK OUTBOARD SIDE, AT 3" PIPEBRACE AT WEB OF EYE BEAMS.
Engineering
Issued 18 October 1988
Resolved
RENEW AND PROVE RELIEF VALVE ON INBOARD CLAYTON STEAM HEATING BOILER.
Engineering
Issued 18 October 1988
Resolved
REPAIR AND PROVE PORT AND STARBOARD EMERGENCY FUEL SHUTDOWNS.
Fire Fighting
Issued 18 October 1988
Resolved
HYDRO TEST FOUR PORTABLE CO2 EXTINGUISHERS.
Lifesaving
Issued 18 October 1988
Resolved
RENEW FOUR ORANGE SMOKE FOR LIFEBOATS.
Lifesaving
Issued 18 October 1988
Resolved
REPLACE ONE BUOYANT ROCKET FOR LINE THROWING GUN.
Construction/Loadline
Issued 13 April 1988
Resolved
PROVIDE A COPY OF UNDERWATER SURVEY VIDEO TAPE AND REPORT TO THIS OFFICE.
Documentation
Issued 13 April 1988
Resolved
REPLACE, MODIFY OR REMOVE OILY WATER SEPARATOR TO COMPLY WITH MARPOL 73/78 STANDARDS.
Lifesaving
Issued 13 April 1988
Resolved
CONDUCT OPERATIONAL TEST OF LIFEBOAT NUMBER 1, RELEASE TESTS FOR LIFEBOATS 1, 3, AND 4 AND SPRINKLER TEST OF NUMBER 2.
Fire Fighting
Issued 13 April 1988
Resolved
PROVIDE USCG APPROVED PLAN AND VENDORS SERVICE MANUAL FOR FIXED CO2 SYSTEM.
Lifesaving
Issued 13 April 1988
Resolved
CONDUCT FIRE AND BOAT DRILL WITH REGULAR CREW.
Lifesaving
Issued 13 April 1988
Resolved
REPLACE ALL MILK IN ALL FOUR LIFEBOATS (16 OZ. PER PERSON).
Unknown
Issued 6 October 1987
Resolved
COMPLETE WORKLIST ITEMS 1-28 PRIOR TO CONDUCTING DRILL OPERATIONS OR MOVINGFROM THE AREA OF PORT HUENEME. TOTAL PERSONS ON BOARD IS LIMITED TO 54.
Documentation
Issued 6 October 1987
Resolved
AMEND THE CERTIFICATE OF DOCUMENTATION TO REFLECT CHANGE OF ADDRESS.
Fire Fighting
Issued 6 October 1987
Resolved
TEST THE FIXED CO2 SYSTEM FOR THE EMERGENCY GENERATOR.
Fire Fighting
Issued 6 October 1987
Resolved
TEST THE FIXED HALON SYSTEMS.
Documentation
Issued 6 October 1987
Resolved
RESOLVE WHETHER THE SEDCO 712 IS TO BE CERTIFICATED AS SELF-PROPELLED OR PROPULSION-ASSISTED.
Navigation
Issued 6 October 1987
Resolved
CONDUCT A LIAISON MEETING WITH THE PORT AUTHORITY FOR PORT HUENEME, PILOTS ASSOCIATION, CRAIG FUSARO (FISHING LIAISON) ATTENDED BY COAST GUARD TO ADDRESS THE LOCATION OF THE RIG.
Construction/Loadline
Issued 18 November 1986
Resolved
TIE-DOWNS FOR HELICOPTERS ARE TO BE RECESSED.
Fire Fighting
Issued 18 November 1986
Resolved
FURNISH NAPHTHA FOR FLAME SAFETY LAMPS.
Construction/Loadline
Issued 18 November 1986
Resolved
REPAIR CRACK IN WELD, DECKHOUSE TO MAIN DECK, FORWARD PORTSIDE.
Accommodation/Occupational Safety
Issued 18 November 1986
Resolved
FREE UP PULLEYS ON OUTSIDE FIRE DAMPERS.
Construction/Loadline
Issued 18 November 1986
Resolved
PRVIDE HELO DECK WITH NON-SKID SURFACE.
Lifesaving
Issued 18 November 1986
Resolved
STENCIL LIFE RAFTS WITH CAPACITY OF PERSONS ALLOWED.
Lifesaving
Issued 9 November 1985
Resolved
WEIGHT TEST FOR AND AFT LIFERAFT LAUNCHING DAVITS. PRIOR TO 06DEC85.
Fire Fighting
Issued 9 November 1985
Resolved
RECHARGE AND INSTALL ONE (1) 100 LBS. CO2 BOTTLE SERIAL #17122EK FOR THE MAIN CO2 ROOM. THE ABOVE TO BE COMPLETED PRIOR TO 06DEC85 TO THE SATISFACTION OF THE ATTENDING C.G. INSPECTOR.
Lifesaving
Issued 9 November 1985
Resolved
WEIGHT TEST ALL LIFEBOATS, RESCUE BOAT AND THEIR DAVITS AND PROVE SATISFACTORY OPERATION OF EACH RELEASING GEAR. PRIOR TO 06DEC85.
Lifesaving
Issued 9 November 1985
Resolved
PROVE SATISFACTORY OPERATION OF EACH LIFEBOAT WATER SCREEN SYSTEM. PRIOR TO 06DEC85.
Fire Fighting
Issued 6 October 1985
Resolved
RECHARGE AND INSTALL THREE (3) 100 LB. CO2 CYLINDERS IN MAIN CO2 ROOM.
Documentation
Issued 6 October 1985
Resolved
FCC EXEMPTION CERTIFICATE (FORM 821) EXPIRED.
Fire Fighting
Issued 6 October 1985
Resolved
FOAM SAMPLE TO BE SUBMITTED TO MANUFACTURER FOR ANALYSIS.
Lifesaving
Issued 6 October 1985
Resolved
WEIGHT TEST ALL LIFEBOATS, RESCUE BOATS AND THEIR DAVITS AND PROVE SATISFACTORY OPERATION OF EACH RELEASING GEAR.
Lifesaving
Issued 6 October 1985
Resolved
PROVE SATISFACTORY OPERATION OF EACH LIFEBOAT WATER SCREEN SYSTEM.
Fire Fighting
Issued 6 October 1985
Resolved
PROVIDE A PORTABLE FIRE EXTINGUISHER AND AN AUDIBLE WARNING DEVICE FOR VESSEL'S FORK LIFT TRUCK.
Lifesaving
Issued 6 October 1985
Resolved
PROVIDE WHISTLES AND/OR LIGHTS FOR 26 LIFE PRESERVERS.
Construction/Loadline
Issued 6 October 1985
Resolved
MAKE VARIOUS INTERNAL COMPARTMENTS AVAILABLE FOR EXAMINATION AT NEXT DRYDOCK INSPECTION.
Fire Fighting
Issued 6 October 1985
Resolved
PROVIDE AND INSTALL TAGS AND SEALS FOR ALL FIRE EXTINGUISHERS.
Fire Fighting
Issued 6 October 1985
Resolved
PROVIDE AND POST LOCAL CONTROL OPERATING INSTRUCTIONS FOR BOTH THRUSTER HALON SYSTEMS.
Lifesaving
Issued 6 October 1985
Resolved
WEIGHT TEST FORE AND AFT LIFERAFT LAUNCHING DAVITS.
Lifesaving
Issued 6 October 1985
Resolved
PROVIDE AND INSTALL ONE GLOBE FOR THE LANTERN IN THE NUMBER ONE (#1) LIFEBOAT.
Lifesaving
Issued 1 July 1985
Resolved
CRACKS IN FIBREGLASS TO#3 LIFE BOAT
Lifesaving
Issued 1 July 1985
Resolved
MAKE PREMANENT REPAIRS TO 2"X2" HOLE IN WAY OF LIFE BOAT #4 COVERAT STERN STBD. CORNER.
Construction/Loadline
Issued 11 October 1984
Resolved
PROVE REMOTE OPERATION OF WATERTIGHT DOORS IN THE STBD. FWD COLUMN.
Deck/Cargo
Issued 11 October 1984
Resolved
REMOTE ACTUATED BILGE VALVES FROZEN
Deck/Cargo
Issued 11 October 1984
Resolved
PROVE OPERATION OF BILGE HIGH LEVEL ALARMS IN STBD FWD COLUMN AND STBD PUMP ROOM
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.