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MARLIN NO. 4
MARLIN NO. 4 is a 1968 mobile offshore drilling unit. The Coast Guard has recorded 21 inspections since 1981, most recently in July 1987, along with 51 deficiencies.
Records from 1981 to 1987. Most recent: inspection, 20 July 1987.
- Built
- 1968
- Last inspected
- 20 July 1987
- Documentation
- Not in the documentation file of 10 September 2026
- Deficiencies
- 51 recorded · 0 without a recorded resolution
- Controls
- None recorded without a removal date
Identity
504764
WX6756
53294
Flag
UNITED STATES
—
Maury page id
psix-53294
Inspections, by type
…with no type recorded15
Years with a record
7 calendar years (1981–1987)
The 21 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 39 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 it5075 - Regulatory (Subpart C or D), Net Ton
5075 - Regulatory (Subpart C or D), Gross Ton
5075 - 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 · 21
20 July 1987
Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1329159
5 June 1987
Administrative
Administrative · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1028531
31 March 1987
Administrative
Administrative · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1326585
8 May 1986
Credit Drydock
Administrative · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1306747
28 February 1986
Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1003220
27 January 1986
Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 997624
17 January 1986
Deficiency Check
Physical examination · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1307528
17 December 1985
Deficiency Check
Physical examination · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 998157
17 December 1985
COI Inspection · Credit Drydock
Physical examination · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1305561
12 November 1985
Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1299828
20 March 1985
Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1307767
3 February 1985
Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1305558
21 August 1984
Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1282458
29 February 1984
Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 972262
15 February 1984
Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 973208
19 December 1983
Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1278971
5 July 1983
Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1275868
3 June 1983
Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1273047
29 December 1982
Type not recorded
No type recorded · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 1271675
12 August 1982
Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 969765
18 December 1981
Type not recorded
No type recorded · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 963392
Deficiency record · 51
Construction/Loadline
Issued 17 December 1985
Resolved
PROVIDE FALLS REPLACEMENT DATES FOR BOTH CAPSULES. IF FALLS ARE OLDER THANFOUR (04) YEARS, REPLACE. (WHITTAKER SERVICE MANUAL).
Accommodation/Occupational Safety
Issued 17 December 1985
Resolved
REMOVE RING BOUY HOLDER FROM UNDER STAIRWAY IN THE VICINITY OF CAPSULE NO. 1 AND RE-INSTALL HOLDER IN SUCH A WAY FOR BOUY TO BE SERVICABLE. NVC 4-78, 46 CFR 108.515.
Lifesaving
Issued 17 December 1985
Resolved
PROVIDE AN ADDITIONAL 60 FOOT HEAVING LINE AND TWO 2 3/4 INCH CIRCUMFRENCE PAINTER LINES FOR LIFE CAPSULES NO 1 AND 2. NVC 4-78 AND 46 CFR 108.503.
Lifesaving
Issued 17 December 1985
Resolved
REMOVE EXPIRED WATER FROM CAPSULE NO 1 AND NO 2 AND PROVIDE 84 QUARTS OF APPROVED DRINKING WATER FOR EACH CAPSULE. NVC 4-78 AND 46 CFR 108.503.
Lifesaving
Issued 17 December 1985
Resolved
PROVIDE SPARE COMPRESSED AIR BOTTLES FOR SELF CONTAINED APPARATUS LOCATED IN PUMP CONTROL ROOM AND RECREATIONAL ROOM; NVC 4-78 AND 46 CFR 108.497.
Lifesaving
Issued 17 December 1985
Resolved
REPAIR KICKED UP CEILING TILE IN HOSPITAL ROOM AND STRAIGHTEN GRID SYSTEM. 33 CFR 142.1 (C)(1).
Lifesaving
Issued 17 December 1985
Resolved
WEIGHT TEST CAPSULE NO 1 AND NO 2. NVC 4-78.
Deck/Cargo
Issued 17 December 1985
Resolved
REPAIR BROKEN GLASS, CAB DOOR OF PORT AND STARBOARD CRANES. NVC 4-78 AND 46CFR107.259.
Documentation
Issued 17 December 1985
Resolved
PROVIDE LETTER FROM USCG,MMT-8,DTD 14JAN83 THAT ACCOMPANIES THE OPERATION MANUAL NVC 4-78 46CFR109.121.
Documentation
Issued 17 December 1985
Resolved
PROVIDE "APPROVED" CONSTRUCTION PORTFOLIO. PORTFOLIO ON RIG IS STAMPED "EXAMINED". NVC 4-78.
Documentation
Issued 17 December 1985
Resolved
HAVE QUADRIENNIAL AND ANNUAL INSPECITONS COMPLETED ON PORT AND STARBOARD CRANES; NVC 4-78 AND 46 CFR 107.259.
Fire Fighting
Issued 17 December 1985
Resolved
REFILL AND SERVICE THE SKID MOUNTED DRY CHEMICAL FIRE UNIT "FIRE BOSS". NVC 4-78 AND 46 CFR 108.431.
Lifesaving
Issued 17 December 1985
Resolved
PROVIDE LIGHT STICKS, OR OTHER ACCEPTABLE LIGHT, FOR COMPASSES IN LIFE CAPSULES ONE AND TWO. NVC 4-78 WHITTAKER MANUAL.
Lifesaving
Issued 17 December 1985
Resolved
PROVIDE 23 ADDITIONAL TRIANGULAR BANDAGES FOR FIRST-AID KIT. NVC 4-78 AND 46 CFR 108.707.
Lifesaving
Issued 17 December 1985
Resolved
PROVIDE HYDROSTATIC TEST DATES FOR THE DRY CHEMICAL B-V FIRE EXTINGUISHERS PROTECTING THE HELO PORT. NVC 4-78 AND 46 CFR 108.431.
Deck/Cargo
Issued 17 December 1985
Resolved
REPAIR ALARM BELL TO WALK-IN REFRIGERATOR.
Accommodation/Occupational Safety
Issued 17 December 1985
Resolved
REPAIR EMERGENCY SHUTDOWN TO FUEL OIL TRANSFER PUMP AND LABEL ALL EMERGENCYSHUTDOWNS. 46 CFR 58.01-25.
Engineering
Issued 17 December 1985
Resolved
REMOVE WIRE SPLICE THAT HOLDS DOOR OPEN TO MUD PIT ROOM.
Electrical
Issued 17 December 1985
Resolved
REPAIR STUDS ON MANHOLE TO VOID LOCATED IN THE POTABLE WATER PUMPS AND THE REFRIGERATION COMPRESSOR ROOM. 46 CFR 107.231.
Construction/Loadline
Issued 17 December 1985
Resolved
INSTALL AN APPROVED MARINE SANITATION DEVICE OR PROVIDE CERTIFICATION FOR SYSTEM CURRENTLY INSTALLED. 33 CFR 159.
Accommodation/Occupational Safety
Issued 17 December 1985
Resolved
HAVE LIFEBOAT SWITCHES, CONTROLERS AND FIREPUMP CONTROLLERS OPENED AND AVAILABLE FOR INSPECTION. 46 CFR 111.70.
Fire Fighting
Issued 17 December 1985
Resolved
TEST FUEL OIL LOADING/TRANSFER HOSES. 33 CFR 155.800.
Deck/Cargo
Issued 17 December 1985
Resolved
TEST LOW LUBE OIL PRESSURE AND HIGHWATER TEMPERATURE ALARMS ON THE #1 AND #2 A.C. GENERATORS. 46 CFR 58.10.
Electrical
Issued 17 December 1985
Resolved
REWIRE ELECTRICAL HEATERS IN CHANGE ROOM AND SHOWER ROOM TO REMOVE 100% ELECTRICAL GROUND OR REPLACE WITH UL APPROVED HEATERS FOR MARINE USE. 46 CFR 111.30 AND 33 CFR 142.1 (C).
Electrical
Issued 17 December 1985
Resolved
MAKE BOTH AIR RECEIVERS AVAILABLE FOR INTERNAL INSPECTION. 46 CFR 61.10-5.
Engineering
Issued 17 December 1985
Resolved
TEST RELIEF VALVE TO AIR RECEIVER UNDER DRILL FLOOR. 46 CFR 54.15.
Lifesaving
Issued 17 December 1985
Resolved
REPAIR STARBOARD FORWARD LIFEFLOAT LIFELINES. IF BEYOND SERVICEABLE REPAIR, REPLACE WITH DAVID LAUNCHED LIFERAFT. NVIC 4-78.
Navigation
Issued 17 December 1985
Resolved
REWIRE STARBOARD NAVIGATION LIGHT AND RELAMP PORT AND STARBOARD NAVIGATION LIGHTS WITH PROPER BULBS. 33 CFR 67 - COLREGS, AND FOCUS PORT-BOW OBSTRUCTION LIGHT.
Lifesaving
Issued 17 December 1985
Resolved
CLEAR CONTACTS AND FREE UP STIFF SPRING IN STARBOARD CAPSULE LIMIT SWITCH BOX (INBOARD BOX), 46 CFR 108.507.
Lifesaving
Issued 17 December 1985
Resolved
PROVIDE SMOKE FOR TWO LIFE RING BYUOYS (EXISTING SMOKE EXPIRED) 46 CFR 108.515.
Deck/Cargo
Issued 17 December 1985
Resolved
CLEAN OUT MOUNTINGS WHERE RELIEF VALVES ARE CONNECTED IN CEMENT TANKS 1,2 AND 3 AND BARITE TANK #1.
Electrical
Issued 17 December 1985
Resolved
PROVIDE EMERGENCY SHOTDOWN SWITCH FOR VENTILATION FANS IN ACCOMODATION SPACES. 46 CFR 111.80.3.
Engineering
Issued 17 December 1985
Resolved
REPLACE AND TEST TWO RELIEF VALVES FOR CEMENT P-TANKS. 46 CFR 54.15.
Deck/Cargo
Issued 17 December 1985
Resolved
REPLACE TWO BOLTS ON CHECK VALVE TO BILGE SUCTION IN MUD PUMP ROOM. 46 CFR 56.50-50.
Lifesaving
Issued 17 December 1985
Resolved
TEST LIMIT SWITCHES ON BOTH CAPSULES IN PRESENCE OF A COAST GUARD INSPECTOR
Construction/Loadline
Issued 17 December 1985
Resolved
COMPLETE SPECIAL EXAM IN LIEU OF DRYDOCKING INSPECTION; LEG TO MAT CONNECTION MAGNETIC PARTICAL.
Construction/Loadline
Issued 17 December 1985
Resolved
COMPLETE DRYDOCK EXAM ENTER VOIDS TANKS PER LISTING WEIGHT ONBOARD BY COAST GUARD INSPECTOR AND ABS.
Construction/Loadline
Issued 17 December 1985
Resolved
DRYDOCK VESSEL TO MAKE REPAIRS TO THE LOWER MAT IN WAY OF THE PORT SIDE OF THE MOON POOL, AND PORT AND STARBOARD TANK-KEY WAY: TANKS.
Electrical
Issued 17 December 1985
Resolved
PROVIDE CAPS FOR HOSES USED TO REFILL CRANES WHERE DEADMAN NOZZLE IS NOT FITTED. 46 CFR 58.01.
Documentation
Issued 17 December 1985
Resolved
PROVIDE OIL TRANSFER PROCEDURES AS PER 33 CFR 155.800.
Unknown
Issued 19 December 1983
Resolved
THE FOLLOWING DEFICIENCY PERTAIN TO THE MARLIN NO. 4
Lifesaving
Issued 19 December 1983
Resolved
PROVIDE A COAST GUARD APPROVED HAZAROUS LOCATION PLAN ABOARD THE VESSEL. 46 CFR 107.305
Lifesaving
Issued 19 December 1983
Resolved
MAKE REPAIRS TO THE PORT SURVIVAL CAPSULE WINCH BRAKE ASSEMELY. 46 CFR 108.507.
Unknown
Issued 19 December 1983
Resolved
PROVIDE A NOZZLE FOR THE STARBOARD CRANE REFUELING HOSE, 46 CFR 109.521
Electrical
Issued 19 December 1983
Resolved
REPAIR THE GENERAL ALARM BELL IN THE COMPRESSOR ROOM, 46 CFR 113.25
Accommodation/Occupational Safety
Issued 19 December 1983
Resolved
MAKE THE RIG FLOOR PRESSURE VESSEL AVAILABLE FOR INTERNAL INSPECTION. 46 CFR 61.10.
Unknown
Issued 19 December 1983
Resolved
DEMONSTRATE PROPER OPERATION OF THE STARBOARD MUD PUMP RELIEF VALVE. 46 CFR107.215.
Electrical
Issued 19 December 1983
Resolved
MAKE THE DC GENERATORS AVAILABLE FOR SEMI-ANNUAL INSPECTION-46 CFR 107.215.
Unknown
Issued 5 July 1983
Resolved
CONDUCT UNDERWATER SURVEY OF MAT BOTTOM AND SKIRT. SUBMIT DIVERS REPORT OFRESULTS. ABOVE SURVEY TO BE COMPLETED PRIOR TO PLACING RIG BACK IN SERVICE
Unknown
Issued 5 July 1983
Resolved
THE FOLLOWING DEFICIENCY IS FOR THE MARLIN NO. 4, DN504764.
Construction/Loadline
Issued 29 December 1982
Resolved
MAKE PERMENENT REPAIRS TO #1 STBD. DRILL WATER TANK IN ALL DAMAGED AREAS. TEMPORARY REPAIRS AUTHORIZED UNTIL NEXT D/D OR 18DEC83.
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.