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CLIFFS DRILLING 100

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

CLIFFS DRILLING 100 is a mobile offshore drilling unit. The Coast Guard has recorded 11 inspections since 1996, most recently in June 2012, along with 37 deficiencies — 2 with no resolution recorded —.

Records from 1996 to 2012. Most recent: inspection, 8 June 2012.

Built
Not recorded
Last inspected
8 June 2012
Documentation
Not in the documentation file of 10 September 2026
Inspections
11
Deficiencies
37 recorded · 2 without a recorded resolution
Controls
None recorded without a removal date

Identity

US Official No.
—
IMO number
—
Call sign
ELMM4
MISLE id
411942
Flag
LIBERIA
MMSI
—
Maury page id
psix-411942

Inspections, by type

…physical examinations1
…administrative events8
…with no type recorded2
…past their stated due date2
Years with a record 4 calendar years (1996–2012)
The 11 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 14 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 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 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 · 11

8 June 2012 Load Line/Change of Employment
Administrative · Marine Safety Unit Port Arthur · USCG Heartland District (CGD-H) · Activity 4338002
20 March 1998 Administrative
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1110728
3 February 1998 Letter of Compliance (Initial/Renewal)
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1381115
7 January 1998 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 770967
27 December 1997 Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 192879
30 May 1997 Administrative
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1109767
31 January 1997 Letter of Compliance (Initial/Renewal)
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1425860
24 January 1997 Administrative
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1098770
16 July 1996 Administrative
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1090802
16 April 1996 Deficiency Check
Physical examination · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1081687
7 February 1996 Letter of Compliance (Initial/Renewal)
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1424193

Deficiency record · 37

Lifesaving
Issued 3 February 1998 Resolved
RECHARGE SPARE OBA BOTTLE FOR FIREMANS SUIT ON MAIN DECK.
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Deck/Cargo
Issued 3 February 1998 Resolved
INSTALL PLUGS ON DRAINS FOR OIL TANKS BY SCR ROOM.
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Construction/Loadline
Issued 3 February 1998 Resolved
INSTALL PROPER GASKETS IN WTD'S IN MACHINERY SPACES. _x001C_ _x001C_
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Lifesaving
Issued 3 February 1998 Resolved
REPAIR EYEWASH STATION IN THE DRILL FLOOR.
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Construction/Loadline
Issued 3 February 1998 Resolved
CLOSE OPEN STUFFING TUBES IN MUD PIT BULKHEADS.
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Lifesaving
Issued 3 February 1998 No resolution recorded
CONDUCT AIR QUALITY TEST ON BREATHING AIR IN BOTH LIFEBOATS.
Condition: Unknown
Due 11 March 1998 — due date passed with no resolution recorded
Lifesaving
Issued 3 February 1998 Resolved
PROCURE SURVIVAL LIGHTS FOR ALL LIFE PRESERVERS AS NEEDED.
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Documentation
Issued 3 February 1998 No resolution recorded
PROVIDE ABS APPROVED COPY OF FIRE CONTROL PLAN TO OUR OFFICE.
Condition: Unknown
Due 30 April 1998 — due date passed with no resolution recorded
Electrical
Issued 3 February 1998 Resolved
PROVE PROPER OPERATION OF REVERSE POWER RELAY ON #3 GENERATOR.
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Electrical
Issued 3 February 1998 Resolved
PROVE PROPER OPERATION OF LOW L/O SHUTDOWN ON ALL GENERATORS_x001C_ _x001C_ _x001C_ .
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Lifesaving
Issued 3 February 1998 Resolved
PROVE OPERATION OF ALARM PANEL IN SCR ROOM.
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Electrical
Issued 3 February 1998 Resolved
LABEL EMERGENCY LIGHTS IN EDG ROOM_x001C_ _x001C_ _x001C_ _x001C_
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Electrical
Issued 3 February 1998 Resolved
PROVE PROPER OPERATION OF EDG INCLUDING SHUTDOWNS.
Condition: Unknown
Due 27 February 1998
Resolved 27 February 1998
Unknown
Issued 31 January 1997 Resolved
ADD NECK, ARM AND LEG SPLINTS TO HOSPITAL SUPPLIES.
Condition: Unknown
Due 13 February 1997
Resolved 13 February 1997
Fire Fighting
Issued 31 January 1997 Resolved
INSTALL FIRE STATIONS #16 AND #17 ON DRILL FLOOR IN ACCORDANCE WITH APPROVED FIRE CONTROL AND SAFETY PLAN OR GAIN APPROVAL OF RIG MODIFICATION FROM CLASSIFICATION SOCIETY.
Condition: Unknown
Due 31 January 1997
Resolved 31 January 1997
Lifesaving
Issued 31 January 1997 Resolved
MAKE REPAIRS, MODIFICATIONS AND CHANGES IN POLICY TO COMPLY WITH REVISIONS TO 46 CFR 107-109.
Condition: Unknown
Due 31 January 1997
Resolved 31 January 1997
Documentation
Issued 31 January 1997 Resolved
PROVIDE COPY OF SAFE MANNING CERTIFICATE.
Condition: Unknown
Due 13 February 1997
Resolved 13 February 1997
Electrical
Issued 31 January 1997 Resolved
MAKE DOORS TO MUD PITS GAS-TIGHT.
Condition: Unknown
Due 13 February 1997
Resolved 13 February 1997
Accommodation/Occupational Safety
Issued 31 January 1997 Resolved
INSTALL CLAMPS ON POTABLE WATER PIPING. INSTALL 100 PSI RELIEF VALVE ON POTABLE WATER TANK.
Condition: Unknown
Due 13 February 1997
Resolved 13 February 1997
Electrical
Issued 31 January 1997 Resolved
REPAIR LOW LUBE OIL SENSING UNITS ON GENERATOR PRIME MOVERS.
Condition: Unknown
Due 13 February 1997
Resolved 13 February 1997
Engineering
Issued 31 January 1997 Resolved
INSTALL RIGID FUEL LINE BETWEEN EMERGENCY GENERATOR AND SERVICE TANK.
Condition: Unknown
Due 13 February 1997
Resolved 13 February 1997
Construction/Loadline
Issued 31 January 1997 Resolved
MAKE REPAIRS TO WATERTIGHT DOORS.
Condition: Unknown
Due 13 February 1997
Resolved 13 February 1997
Electrical
Issued 31 January 1997 Resolved
PERFORM TEST OF TOTAL RIG SHUT-DOWN.
Condition: Unknown
Due 31 January 1997
Resolved 31 January 1997
Documentation
Issued 7 February 1996 Resolved
PROVIDE COPY OF ABS HULL SURVEY STATUS REPORT.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Fire Fighting
Issued 7 February 1996 Resolved
INSTALL VENT CLOSURE ON PAINT LOCKER VENT.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Lifesaving
Issued 7 February 1996 Resolved
INSTALL VISUAL GENERAL ALARM ON DRILL FLOOR.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Electrical
Issued 7 February 1996 Resolved
INSTALL PERMANENTLY MOUNTED BATTERY CHARGER FOR EMERGENCY GENERATOR STARTING BATTERIES.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Lifesaving
Issued 7 February 1996 Resolved
PRIOR TO DRILLING, COMPLETE INSTALLATION OF PRESSURE GAUGE IN AIR LINE TO DRILLER'S CONSOLE AND TO TOP DRIVE DC CONTACTOR PANEL.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Electrical
Issued 7 February 1996 Resolved
UPON INSTALLATION OF NEW EXCITOR IN #2 GENERATOR SET, PROVE PROPER OPERATIONS OF FOLLOWING TRIPS: LOW LUBE OIL, OVERSPEED, AND REVERSE POWER RELAY.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Electrical
Issued 7 February 1996 Resolved
BLANK EMPTY SLOTS ON DISTRIBUTION PANELS #1 AND #2 TO EMERGENCY GENERATOR SWITCHBOARD.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Accommodation/Occupational Safety
Issued 7 February 1996 Resolved
PROVIDE PROPER VENTILATION FOR ALL BATTERY STORAGE BOXES.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Electrical
Issued 7 February 1996 Resolved
PRIOR TO DRILLING, COMPLETE INSTALLATION OF UPPER LEVEL SHALE SHAKER GAS DETECTOR.
Condition: Unknown
Due 11 February 1996
Resolved 4 April 1996
Lifesaving
Issued 7 February 1996 Resolved
RENEW OR END-FOR-END ALL LIFE CAPSULE DAVIT FALLS.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Fire Fighting
Issued 7 February 1996 Resolved
ONCE ON LOCATION, FLUSH FIREMAIN SYSTEM OF ALL DEBRIS.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Electrical
Issued 7 February 1996 Resolved
PRIOR TO DRILLING, PROVE PROPER OPERATIONS OF REVERSE POWER RELAY TRIP FOR #1 GENERATOR SET.
Condition: Unknown
Due 11 February 1996
Resolved 4 April 1996
Documentation
Issued 7 February 1996 Resolved
PROVIDE COPY OF PRESSURE VESSEL INSPECTION REPORT AND RELIEF VALVE TEST REPORT PERFORMED BY ABS.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996
Construction/Loadline
Issued 7 February 1996 Resolved
REPAINT DRAFT MARKS AND HOMEPORT IN COLOR CONTRASTING WITH THE HULL.
Condition: Unknown
Due 7 February 1996
Resolved 7 February 1996

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.