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ENSCO III

Mobile Offshore Drilling Unit · Offshore class · Built 1980s · USCG Heartland District (CGD-H)

ENSCO III is a 1981 mobile offshore drilling unit. The Coast Guard has recorded 32 inspections since 1981, most recently in May 1990, along with 54 deficiencies.

Records from 1981 to 1990. Most recent: inspection, 30 May 1990.

Built
1981
Last inspected
30 May 1990
Documentation
Not in the documentation file of 10 September 2026
Inspections
32
Deficiencies
54 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date

Identity

US Official No.
643418
IMO number
—
Call sign
—
MISLE id
53020
Flag
UNITED STATES
MMSI
—
Maury page id
psix-53020

Inspections, by type

…physical examinations8
…administrative events6
…with no type recorded18
Years with a record 10 calendar years (1981–1990)
The 32 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 36 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 it3153 - Regulatory (Subpart C or D), Net Ton
3153 - Regulatory (Subpart C or D), Gross 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

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 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 · 32

30 May 1990 Administrative
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1230192
20 December 1989 Administrative
Administrative · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 903310
6 November 1989 Administrative
Administrative · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1340796
16 August 1989 Re-Inspection
Physical examination · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 893628
10 December 1988 Deficiency Check
Physical examination · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1346400
29 August 1988 Administrative
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1038555
19 August 1988 Administrative
Administrative · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1347309
12 August 1988 Deficiency Check
Physical examination · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1343116
1 July 1988 COI Inspection · Damage Survey
Physical examination · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 896382
20 January 1988 COI Inspection · Hull Examination
Physical examination · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1000814
19 March 1987 Administrative
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1016440
21 October 1986 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1010248
30 April 1986 Deficiency Check
Physical examination · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1307959
3 April 1986 Deficiency Check
Physical examination · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1306431
13 January 1986 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 988705
11 December 1985 COI Inspection
Physical examination · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1299197
20 February 1985 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 978274
17 January 1985 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 977545
22 March 1984 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 973044
3 February 1984 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1280158
27 January 1984 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1279106
30 December 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 972181
15 December 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1280111
15 December 1983 Type not recorded
No type recorded · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 1280796
18 October 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 970043
13 October 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1279012
14 July 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1272202
7 March 1983 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 963501
21 December 1982 Type not recorded
No type recorded · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 964620
1 June 1982 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1272328
22 April 1982 Type not recorded
No type recorded · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 1274974
21 December 1981 Type not recorded
No type recorded · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 1273721

Deficiency record · 54

Lifesaving
Issued 16 August 1989 Resolved
OBTAIN AND INSTALL 19 ADDITIONAL RED HAND FLARES (FOR THE TWO LIFEBOATS) WHICH HAVE BEEN MANUFACTURED WITHIN THE LAST 3 YEARS. 5 SATISFACTORY PRESENTLY ON BOARD; 12 REQUIRED IN EACH BOAT.
Condition: Unknown
Due 16 August 1989
Resolved 16 August 1989
Accommodation/Occupational Safety
Issued 16 August 1989 Resolved
INSTALL A PROPER RELIEF VALVE FOR THE DRILL FLOOR AIR RECEIVER WHICH HAS A HAND LIFTING DEVICE. ENSURE VALVE IS OF CORRECT RELIEVING CAPACITY AND IS SATISFACTORILY TESTED TO RELIEVE AT OR BELOW THE MAWP OF THE RECEIVER PRIORTO INSTALLATION.
Condition: Unknown
Due 16 August 1989
Resolved 16 August 1989
Electrical
Issued 16 August 1989 Resolved
REPAIR AND SATISFACTORILY DEMONSTRATE THE REVERSE POWER RELAY FOR THE NUMBER 4 DIESEL GENERATOR.
Condition: Unknown
Due 16 August 1989
Resolved 16 August 1989
Documentation
Issued 1 July 1988 Resolved
PROVIDE OIL TRANSFER PROCEDURES IN ACCORDANCE WITH 33 CFR PARTS 155.720 TO 155.750.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Electrical
Issued 1 July 1988 Resolved
REPAIR INOPERATIVE PERIPHERAL LIGHTS ON HELODECK AND CLEAN OR REPAINT AIMING CIRCLE.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Construction/Loadline
Issued 1 July 1988 Resolved
MAKE MAN HOLES TO PRELOAD TANKS #6S AND #6P AVAILABLE FOR AIR TEST OR HOSE TEST WHEN LEG STOWAGE RACKS ARE REMOVED AND HATCHES REINSTALLED.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Lifesaving
Issued 1 July 1988 Resolved
CONDUCT FIRE AND BOAT DRILLS IN THE PRESENCE OF A COAST GUARD MARINE INSPECTOR.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Accommodation/Occupational Safety
Issued 1 July 1988 Resolved
MAKE QUARTERS SPACES AVAILABLE FOR INSPECTION UPON COMPLETION OF RE- FURBISHING.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Fire Fighting
Issued 1 July 1988 Resolved
LABEL ALL FIRE STATIONS AS INDICATED ON FIRE AND SAFETY PLAN.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Fire Fighting
Issued 1 July 1988 Resolved
RETURN ALL FIRE HOSES, B-V SEMI-PORTABLE EXTINGUISHERS, FIREMEN'S OUTFITS, LINE THROWING GUN, PFD'S AND APPLICATORS, TO THEIR PROPER LOCATION PRIOR TOCOMMENCING DRILLING OPERATIONS.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Fire Fighting
Issued 1 July 1988 Resolved
RECONNECT AND HYDROSTATICALLY TEST SECTIONS OF FIRE MAIN PIPING LEADING TO FIRE STATIONS 6,7, AND 8.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Fire Fighting
Issued 1 July 1988 Resolved
HYDROSTATICALLY TEST ALL FIRE HOSES IN THE PRESENCE OF A MARINE INSPECTOR.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Unknown
Issued 1 July 1988 Resolved
NOTIFY [name withheld], LA WHEN WORK IS TO BE COMMENCED IN RE-ATTACHING ATTACHING 88' LEG SECTIONS.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Unknown
Issued 1 July 1988 Resolved
MAKE TOP DRIVE UNIT AND ASSOCIATED PURGE AIR SYSTEM AVAILABLE FOR INSPECTION UPON COMPLETION OF INSTALLATION.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Unknown
Issued 1 July 1988 Resolved
LABEL VALVES AT REFUELING HEADER AND GENERAL ALARM BELLS AND POST "BEWARE OF TAIL ROTOR" SIGN.
Condition: Unknown
Due 1 July 1988
Resolved 1 July 1988
Construction/Loadline
Issued 20 January 1988 Resolved
PROVIDE NOTIFICATION TO THE OFFICER IN CHARGE, MARINE INSPECTION, NEW ORLEANS, LA OF ANY WORK TO BE ACCOMPLISHED IN RE-ATTACHING RIG LEGS (3 EA) AT THE 88' LEVEL ONCE ON STATION AT LAKE MARACAIBO, VE.
Condition: Unknown
Due 20 January 1988
Resolved 20 January 1988
Unknown
Issued 21 October 1986 Resolved
MAKE UNIT AVAILABLE FOR DRYDOCK EXAM OR SPECIAL UNDERWATER EXAM IN LIEU OF DRYDOCKING PRIOR TO RETURNING THE RIG TO SERVICE AND NO LATER THAN THE NEXTBIENNIAL INSPECTION. A PROPOSAL MEETING THE REQUIREMENTS OF 46 CFR 107.265MUST BE SUBMITTED 30 DAYS IN ADVANCE IF SPECIAL UNDERWATER EXAM IS PLANNED.
Condition: Unknown
Due 21 October 1986
Resolved 21 October 1986
Construction/Loadline
Issued 3 April 1986 Resolved
CHECK ALL TANKS AND REPLACE BILGE SUCTION LINE STRAINERS AS NECESSARY.
Condition: Unknown
Due 3 April 1986
Resolved 3 April 1986
Construction/Loadline
Issued 3 April 1986 Resolved
REPAIR OR REPLACE FILL VALVE IN PRELOAD 10-5.
Condition: Unknown
Due 3 April 1986
Resolved 3 April 1986
Construction/Loadline
Issued 3 April 1986 Resolved
REPLACE STRAINER ON BILGE SUCTION LINE. CLEAN OUT RUST IN BELLMOUTH AND CLEAN OUT SOUNDING TUBE IN MUD PIT VOID.
Condition: Unknown
Due 3 April 1986
Resolved 3 April 1986
Lifesaving
Issued 11 December 1985 Resolved
PROVIDE INTERIOR LIGHTING OR ONE ADDITIONAL 3-CELL FLASHLIGHT IN EACH LIFEBOAT, 46 CFR 108.503.
Condition: Unknown
Due 11 December 1985
Resolved 11 December 1985
Accommodation/Occupational Safety
Issued 11 December 1985 Resolved
REPLENISH OR RESTOCK THE FIRST AID KIT IN THE TREATMENT ROOM, 46 CFR 108.709.
Condition: Unknown
Due 11 December 1985
Resolved 11 December 1985
Lifesaving
Issued 11 December 1985 Resolved
RELOCATE RING BUOY PORTSIDE AFT TO AN ACCESSIBLE LOCATION, 46 CFR 108.515.
Condition: Unknown
Due 11 December 1985
Resolved 11 December 1985
Accommodation/Occupational Safety
Issued 11 December 1985 Resolved
OPEN ALL BULK TANKS AND THE DRILL FLOOR AIR RECEIVER FOR INTERNAL INSPECTION BY THE COAST GUARD, 46 CFR 61.10.
Condition: Unknown
Due 11 December 1985
Resolved 11 December 1985
Accommodation/Occupational Safety
Issued 11 December 1985 Resolved
TEST THE RELIEF VALVE FOR THE DRILL FLOOR AIR RECIEVER IN PRESENCE OF THE COAST GUARD, 46 CFR 61.10.
Condition: Unknown
Due 11 December 1985
Resolved 11 December 1985
Construction/Loadline
Issued 11 December 1985 Resolved
REPAIR GASKET ON GALLEY DOOR, 46 CFR 108.114.
Condition: Unknown
Due 11 December 1985
Resolved 11 December 1985
Construction/Loadline
Issued 11 December 1985 Resolved
MAKE OPERABLE THE REACH ROD TO THE PORT PRELOAD DUMP VALVE, 46 CFR 56.20.
Condition: Unknown
Due 11 December 1985
Resolved 11 December 1985
Lifesaving
Issued 11 December 1985 Resolved
PROVIDE TWELVE RED PARACHUTE FLARES FOR THE RIG, 46 CFR 108.521.
Condition: Unknown
Due 11 December 1985
Resolved 11 December 1985
Electrical
Issued 17 January 1985 Resolved
PROVIDE PROOF THAT THE DATA STAR MUD WEIGHER NEAR THE SHALE SHAKER IS APPROVED BY FM AS INTRINSICALLY SAFE FOR HAZARDOUS LOCATIONS.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Electrical
Issued 17 January 1985 Resolved
REPAIR OR REPLACE THE EMERGENCY BATTLE LANTERN LOCATED ON THE CENTERLINE FIRST DECK PASSAGEWAY.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Lifesaving
Issued 17 January 1985 Resolved
PROVIDE UP TO DATE SMOKE CANNISTERS TO ATTACH TO THE TWO RING BUOYS ON DECK.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Lifesaving
Issued 17 January 1985 Resolved
CHANGE THE FUEL IN BOTH LIFEBOATS AND LOG THIS IN THE MASTER'S LOG.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Lifesaving
Issued 17 January 1985 Resolved
PROVIDE A USCG APPROVED JACKKNIFE FOR LIFEBOAT NUMBER ONE.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Electrical
Issued 17 January 1985 Resolved
MAKE DATA STAR SHACK AVAILABLE FOR COAST GUARD INSPECTION TO VERIFY ITS SUITABILITY FOR HAZARDOUS LOCATIONS.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Electrical
Issued 17 January 1985 Resolved
REPLACE THE ALARM HORN FOR THE WMCO MUD VOLUME UNIT ON THE DRILL FLOOR WITHA UL OR FM APPROVED EXPLOSIONPROOF HORN.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Fire Fighting
Issued 17 January 1985 Resolved
REPLACE THE BAD COIL IN THE GENERAL ALARM BELL IN THE SHALE SHAKER AREA ANDTEST TO THE SATISFACTION OF A USCG MARINE INSPECTOR.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Electrical
Issued 17 January 1985 Resolved
REPLACE ALARM HORN FOR ESTERLINE ARGUS UNIT ON DRILL FLOOR WITH A UL OR FM APPROVED EXPLOSIONPROOF HORN.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Fire Fighting
Issued 17 January 1985 Resolved
PROVIDE THREE FULL AIR BOTTLES FOR THE SELF-CONTAINED BREATHING APPARATUS.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Navigation
Issued 17 January 1985 Resolved
ADJUST THE ALIGNMENT OF BOTH SIDELIGHTS TO PROVIDE THE PROPER ARC OF VISIBILITY.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Electrical
Issued 17 January 1985 Resolved
INSTALL AN EYS FITTING FOR THE SWACO CENTRIFUGE UNIT IN THE SHALE SHAKER AREA.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Construction/Loadline
Issued 17 January 1985 Resolved
REPLACE THE MISSING DOG FOR THE DOOR ON THE SECOND DECK IN THE QUARTERS.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Accommodation/Occupational Safety
Issued 17 January 1985 Resolved
PROVIDE MISSING CHAINS FOR THE SECTION OF THE RAILING UNDER THE CANTILEVER.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Unknown
Issued 17 January 1985 Resolved
REPLACE THE RELIEF VALVES FOR THE #3 BARITE TANK AND THE SURGE TANK FOR THE HALLIBURTON CEMENTING UNIT WITH RELIEF VALVES OF THE PROPER SETTING ANDCAPACITY.
Condition: Unknown
Due 17 January 1985
Resolved 17 January 1985
Unknown
Issued 15 December 1983 Resolved
BRING THE GENERAL ALARM AND REMOTE SHUTDOWN PANEL ON DRILL FLOOR INTO COM- PLIANCE WITH THE ALARM REQUIREMENTS OF NFPA 496.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
MAKE THE HORN FOR THE ESTERLINE ARGUS UNIT EXPLOSION PROOF IN ACCORDANCE WITH NFPA 496.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
CONDUCT AN UNDERWATER SURVEY IN LIEU OF DRYDOCKING IN ACCORDANCE WITH 46 CFR 107.267 PRIOR TO NEXT RIG MOVE.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
REMOVE THE VALVES IN THE ABOVE TANKS AND MAKE THEM AVAILABLE FOR INSPECTIONPRIOR TO THE NEXT RIG MOVE.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
VENTILATE THE FOLLOWING TANKS AND MAKE THEM AVAILABLE FOR INSPECTION, P-10-6, 10-5, 18-3, 18-4 & DRILL WATER TNKS 5-0, 20-1 & 20-2 PRIOR TO MOVE.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
CONDUCT AN OPERATIONAL TEST OF BOTH LIFE CAPSULES IN THE WATER.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
DEMONSTRATE THE OPERATION OF THE RELIEF VALVE FOR THE DRILL FLOOR AIR RE- CEIVER PRIOR TO THE NEXT RIG MOVE.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
CONDUCT HYDRO TEST OR MAKE AVAILABLE FOR INTERNAL EXAMINATION OF THE DRILL FLOOR AIR RECEIVER PRIOR TO THE NEXT RIG MOVE.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
CONDUCT HYDRO TEST OR MAKE AVAILABLE FOR INTERNAL EXAMINATION ALL SIX P-TANKS PRIOR TO THE NEXT RIG MOVE.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Unknown
Issued 15 December 1983 Resolved
THE FOLLOWING DEFICIENCIES ARE FOR THE CHARGER II, DN643418.
Condition: Unknown
Due 15 December 1983
Resolved 15 December 1983
Documentation
Issued 22 April 1982 Resolved
PROVIDE ON BOARD THE VESSEL A CONSTRUCTION PORTFOLIO.
Condition: Unknown
Due 1 July 1982
Resolved 22 April 1982

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.