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S-55

Mobile Offshore Drilling Unit · Offshore class · Built 1950s · USCG Heartland District (CGD-H) · Other hulls named S-55

S-55 is a 1955 mobile offshore drilling unit. The Coast Guard has recorded 12 inspections since 1981, most recently in April 1986, along with 54 deficiencies.

Records from 1981 to 1986. Most recent: inspection, 11 April 1986.

Built
1955
Last inspected
11 April 1986
Documentation
Not in the documentation file of 10 September 2026
Inspections
12
Deficiencies
54 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date

Identity

US Official No.
—
IMO number
—
Call sign
—
MISLE id
53347
Flag
UNITED STATES
MMSI
—
Maury page id
psix-53347

Inspections, by type

…with no type recorded12
Years with a record 6 calendar years (1981–1986)
The 12 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 40 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 · 12

11 April 1986 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1000016
27 March 1985 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 980340
11 January 1985 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 975428
30 August 1984 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1282205
11 January 1984 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1280610
9 December 1983 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1278887
9 December 1983 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1280783
12 May 1983 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1272969
18 August 1982 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 967174
7 July 1982 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1275178
3 February 1982 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1277489
19 November 1981 Type not recorded
No type recorded · MIO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1279879

Deficiency record · 54

Fire Fighting
Issued 11 January 1985 Resolved
MAKE PERMANENT REPAIRS TO FIRE MAIN PIPING IN WAY OF THE FIRE PUMP WHERE THE SOFT PATCH IS NOW INSTALLED 46 CFR 56.
Condition: Unknown
Due 11 January 1985
Resolved 11 January 1985
Electrical
Issued 11 January 1985 Resolved
MAKE OPERABLE THE GENERAL ALARM BELLS LOCATED IN THE LOWER PUMP ROOM 46 CFR 113.25.
Condition: Unknown
Due 11 January 1985
Resolved 11 January 1985
Construction/Loadline
Issued 11 January 1985 Resolved
MAKE PERMANENT REPAIRS TO CRACKED WELD ON THE FORWARD PORT BOTTLE AND MAT CONNECTION APPROXIMATELY 1/4 WAY AROUND FROM THE FORWARD EDGE OF THE SKIRT PRIOR TO COMMENCING ANY REPAIRS SUBMIT REPAIR PROPOSAL TO THE COGNIZANT OCMI.
Condition: Unknown
Due 21 February 1985
Resolved 18 May 2002
Resolution: MISLE Maintenance - Resolved all open deficiencies issued prior to 6/1/1997 where activity was closed and deficiency due date was past
Unknown
Issued 11 January 1985 Resolved
THE FOLLOWING DEFICIENCIES PERTAIN TO THE VESSEL, S-55, CG000147 AND ARE TO BE COMPLIED WITH BY 11FEB85.
Condition: Unknown
Due 11 January 1985
Resolved 11 January 1985
Navigation
Issued 30 August 1984 Resolved
REPLACE WASTED FRAMING AND FLOOR PLATE IN SUBSTRUCTURE BENEATH WOOD PLANK-ING IN THE WELL BAY AREA AROUND THE CEMENT TANKS.
Condition: Unknown
Due 30 August 1984
Resolved 30 August 1984
Navigation
Issued 30 August 1984 Resolved
REPLACE WASTED GRATING IN CATWALK BENEATH BULK CEMENT TANKS.
Condition: Unknown
Due 30 August 1984
Resolved 30 August 1984
Unknown
Issued 30 August 1984 Resolved
THE FOLLOWING DEFICIENCIES PERTAIN TO THE VESSEL, S-55, CG000147.
Condition: Unknown
Due 30 August 1984
Resolved 30 August 1984
Navigation
Issued 30 August 1984 Resolved
MAKE PERMANENT REPAIRS TO CRACKED WELD ON FORWARD PORT BOTTLE AT MAT CONN- ECTION APPROXIMATELY '1X WAY AROUND FROM FORWARD EDGE OF SKIRT PRIOR TO COMMENCING ANY REPAIRS SUBMIT REPAIR PROPOSAL TO THE COGNIZANT OCMI.
Condition: Unknown
Due 30 August 1984
Resolved 30 August 1984
Unknown
Issued 30 August 1984 Resolved
REQUIREMENTS 1 AND 2 ARE TO BE COMPLETED TO THE SATISFACTION OF THE COGNIZANT OCMI PRIOR TO THE END OF THE NEXT RIG MOVE BUT IN NO CASE LATER THAN 28 FEB 85.
Condition: Unknown
Due 30 August 1984
Resolved 30 August 1984
Fire Fighting
Issued 11 January 1984 Resolved
REPAIR OR REPLACE BOTH OXYGEN SENSORS ON THE OXYGEN AND EXPLOSIVE METERS LOCATED IN THE RADIO ROOM.
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Fire Fighting
Issued 11 January 1984 Resolved
PROVIDE LIFELINE FOR FIRE MAN'S OUTFIT LOCATED IN THE RADIO ROOM.
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Lifesaving
Issued 11 January 1984 Resolved
PROVIDE 12 HAND HELD RED FLARES AND CHANGE FUEL IN NUMBER 1 CAPSULE
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Unknown
Issued 11 January 1984 Resolved
THE FOLLOWING DEFICIENCIES PERTAIN TO THE MODU SS-55, CG000147.
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Deck/Cargo
Issued 11 January 1984 Resolved
REPAIR OR REPLACE DECK UNDER ELEVATOR RELAY PANEL AND IN STORE ROOM ADJACENT TO FIRE PUMPS.
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Navigation
Issued 11 January 1984 Resolved
PROVIDE TWO (2) ALL AROUND RED LIGHTS AS REQUIRED BY RULER 30 1972 COLREGS.
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Fire Fighting
Issued 11 January 1984 Resolved
REPAIR LEAK IN FIREMAIN ELBOW (AFT CENTER GENERATOR ROOM).
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Deck/Cargo
Issued 11 January 1984 Resolved
PROVIDE CONTAINMENT AROUND FUEL OIL VENTS AND MAKE VENTS ACCESSIBLE FOR INSPECTION
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Unknown
Issued 11 January 1984 Resolved
REPAIR OR REPLACE BOTH HEATING BOILER RELIEF VALVES AND SET SAME IN PRESSENCE OF A MARINE INSPECTOR.
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Deck/Cargo
Issued 11 January 1984 Resolved
HYDROSTATICALLY TEST BOTH FUEL OIL TRANSFER HOSES TO 1 1/2 TIMES THE MAXIMUM WORKING PRESSURE AS REQUIRED BY 33 CFR 156.170
Condition: Unknown
Due 11 January 1984
Resolved 11 January 1984
Construction/Loadline
Issued 7 July 1982 Resolved
MAKE PERMANENT REPAIRS TO CRACKED WELD ON FORWARD STARBOARD BOTTLE AT MAT CONNECTION. SUBMIT PROPOSAL FOR REPAIR TO [name withheld].
Condition: Unknown
Due 7 July 1982
Resolved 7 July 1982
Construction/Loadline
Issued 7 July 1982 Resolved
CROP AND RENEW WASTED AREAS OF 6 IN. TUBING K BRACE OUTBOARD AT STARBOARD CENTER BUMPER PONTOON.
Condition: Unknown
Due 7 July 1982
Resolved 7 July 1982
Construction/Loadline
Issued 7 July 1982 Resolved
CROP AND RENEW WASTED WALKWAY SUPPORT ANGLES ON ACCESS TO PORT AND STARBOARD AFT BUMPER WINCH
Condition: Unknown
Due 7 July 1982
Resolved 7 July 1982
Construction/Loadline
Issued 7 July 1982 Resolved
CROP AND RENEW 6 INCH CHANNEL ACROSS FORWARD STARBOARD BOTTLE CATWALK INBOARD BETWEEN I BEAMS
Condition: Unknown
Due 7 July 1982
Resolved 7 July 1982
Electrical
Issued 7 July 1982 Resolved
REPAIR JUNCTION BOX UNDER FORWARD STARBOARD RUNNING LIGHT
Condition: Unknown
Due 7 July 1982
Resolved 7 July 1982
Electrical
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Unknown
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Fire Fighting
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Construction/Loadline
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Electrical
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Unknown
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Electrical
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Electrical
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Construction/Loadline
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Construction/Loadline
Issued 3 February 1982 Resolved
PROVIDE SELF-CLOSING, GAS TIGHT DOORS FOR STARBOARD P-TANK ROOM TO MOTOR ROOM, MUD PIT ROOM TO ELEVATOR ACCESS ROOM.
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Documentation
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Deck/Cargo
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Unknown
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Electrical
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Unknown
Issued 3 February 1982 Resolved
OUTSTANDING
Condition: Unknown
Due 3 February 1982
Resolved 3 February 1982
Deck/Cargo
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Unknown
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Construction/Loadline
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Construction/Loadline
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Accommodation/Occupational Safety
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Electrical
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Fire Fighting
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Electrical
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Construction/Loadline
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Navigation
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Navigation
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Construction/Loadline
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Lifesaving
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Lifesaving
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 19 February 1982
Resolved 3 February 1982
Electrical
Issued 3 February 1982 Resolved
Unknown Component - Unknown Cause/Condition
Condition: Unknown
Due 3 February 1982
Resolved 3 February 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.