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WESTERN TRITON I

Mobile Offshore Drilling Unit · Offshore class · Built 1970s · USCG Northeast District (CGD-NE)

WESTERN TRITON I is a 1975 mobile offshore drilling unit. The Coast Guard has recorded 13 inspections since 1984, most recently in February 1991, along with 24 deficiencies.

Records from 1984 to 1991. Most recent: inspection, 27 February 1991.

Built
1975
Last inspected
27 February 1991
Documentation
Not in the documentation file of 10 September 2026
Inspections
13
Deficiencies
24 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date

Identity

US Official No.
569410
IMO number
—
Call sign
WZA8348
MISLE id
138519
Flag
UNITED STATES
MMSI
—
Maury page id
psix-138519

Inspections, by type

…physical examinations6
…administrative events6
…with no type recorded1
Years with a record 8 calendar years (1984–1991)
The 13 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 35 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 it4302 - Regulatory (Subpart C or D), Net Ton
4590 - 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 · 13

27 February 1991 Administrative
Administrative · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 928104
17 April 1990 Administrative
Administrative · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1227721
3 April 1990 Administrative
Administrative · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1219051
10 September 1989 Drydock Extension · COI Inspection
Physical examination · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 928510
16 January 1989 Deficiency Check
Physical examination · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1352362
15 August 1988 Re-Inspection
Physical examination · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1200142
24 February 1988 Administrative
Administrative · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1024104
16 September 1987 COI Inspection · Hull Examination · Deficiency Check
Physical examination · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1026930
11 March 1987 Administrative
Administrative · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1011492
14 November 1986 Administrative
Administrative · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1324663
3 March 1986 Re-Inspection
Physical examination · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 999698
3 September 1985 Credit Drydock · Deficiency Check
Physical examination · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1300461
12 December 1984 Type not recorded
No type recorded · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1284054

Deficiency record · 24

Fire Fighting
Issued 10 September 1989 Resolved
HYDROSTATIC TEST ALL PORTABLE AND SEMI-PORTABLE FIRE EXTENGUISHERS WITH A DATE GREATER THAN FIVE YEARS.
Condition: Unknown
Due 10 September 1989
Resolved 10 September 1989
Electrical
Issued 10 September 1989 Resolved
REPAIR ALL EMERGENCY LIGHTS.
Condition: Unknown
Due 10 September 1989
Resolved 10 September 1989
Fire Fighting
Issued 10 September 1989 Resolved
HYDRO TEST 10 SCBA TANKS.
Condition: Unknown
Due 10 September 1989
Resolved 10 September 1989
Lifesaving
Issued 10 September 1989 Resolved
REPLACE 12 EXPIRED FLARES LOCATED IN PILOT HOUSE.
Condition: Unknown
Due 10 September 1989
Resolved 10 September 1989
Electrical
Issued 15 August 1988 Resolved
INSTALL COVER ON JUNCTION BOX OVER #2 GENERATOR.
Condition: Unknown
Due 15 August 1988
Resolved 15 August 1988
Fire Fighting
Issued 15 August 1988 Resolved
PERFORM ANNUAL SERVICING OF FIXED SEMI-PORTABLE AND PORTABLE FIRE EXTINGUISHING EQUIPMENT.
Condition: Unknown
Due 15 August 1988
Resolved 15 August 1988
Electrical
Issued 15 August 1988 Resolved
REPLACE DETERIORATED CABLE TO EXPLOSION PROOF LIGHT ON DRILL FLOOR, PORT SIDE OVER DRAW WORKS.
Condition: Unknown
Due 15 August 1988
Resolved 15 August 1988
Electrical
Issued 15 August 1988 Resolved
REPLACE DETIORATED CABLE TO LIGHTS BY MUD PIT/MUD PUMP ROOM DOORS, PORT AND STBD SIDE OF MUD PUMP ROOM.
Condition: Unknown
Due 15 August 1988
Resolved 15 August 1988
Lifesaving
Issued 15 August 1988 Resolved
PROVIDE FOUR PROPERLY SERVICED AND INSPECTED INFLATING LIFERAFTS. SERVICINGTO BE CONDUCTED IAW 46 CFR 160.05 1-6
Condition: Unknown
Due 15 August 1988
Resolved 15 August 1988
Electrical
Issued 15 August 1988 Resolved
REPLACE DETERIORATED CABLE TO WATERTIGHT DOOR REMOTE CONTROL PANEL ON MAIN DECK, AFT END OF ACCOMODATIONS.
Condition: Unknown
Due 15 August 1988
Resolved 15 August 1988
Construction/Loadline
Issued 15 August 1988 Resolved
REPAIR LEAK IN HYDRAULIC FLUID TUBING BY DOOR IN MUD PIT ROOM AND RESUPPORTTUBING IN OVERHEAD.
Condition: Unknown
Due 15 August 1988
Resolved 15 August 1988
Construction/Loadline
Issued 15 August 1988 Resolved
ADJUST BOTH MUD PIT ROOM DOORS TO FREELY SELF-CLOSE AND TO SEAL TIGHTLY WHEN DOGGED.
Condition: Unknown
Due 15 August 1988
Resolved 15 August 1988
Electrical
Issued 16 September 1987 Resolved
PROVE PROPER OPERATION OF EMERGENCY LIGHTING.
Condition: Unknown
Due 16 September 1987
Resolved 16 September 1987
Electrical
Issued 16 September 1987 Resolved
PROVE PROPER OPERATION OF FLAMMABLE GAS ALARM FOR SUB-BASE.
Condition: Unknown
Due 16 September 1987
Resolved 16 September 1987
Lifesaving
Issued 16 September 1987 Resolved
REPLACE BOTH LIFE CAPSULE DAVIT CABLES OR PROVE WHEN LAST CHANGED AND END FOR ENDED.
Condition: Unknown
Due 16 September 1987
Resolved 16 September 1987
Deck/Cargo
Issued 16 September 1987 Resolved
CONDUCT THE FOLLOWING TEST AND INSPECTIONS TO THE HELO FUELING SYSTEM A. ANNUAL PRV AND VRV B. 60 MONTH HYDRO. THE COAST GUARD WILL ACCEPT DECOMMISSIONING OF THE SYSTEM BY DISMANTLING PUMPS, BLOCKING OF PIPING, DEAD ENDING OR PULLING WIRES.
Condition: Unknown
Due 16 September 1987
Resolved 16 September 1987
Lifesaving
Issued 16 September 1987 Resolved
PROVE PROPER OPERATION OF PORTABLE EMERGENCY RADIO.
Condition: Unknown
Due 16 September 1987
Resolved 16 September 1987
Engineering
Issued 16 September 1987 Resolved
RENEW WHERE WASTED COOLING WATER PIPE TO NUMBER 1 PIER COMPRESSOR.
Condition: Unknown
Due 16 September 1987
Resolved 16 September 1987
Construction/Loadline
Issued 16 September 1987 Resolved
PROPERLY LABEL ALL VENTS ON MAIN DECK.
Condition: Unknown
Due 16 September 1987
Resolved 16 September 1987
Accommodation/Occupational Safety
Issued 16 September 1987 Resolved
RENEW SANITARY WATER PRESSURE TANK, NEW TANK TO BE PROVIDED WITH 1 INCH RELIEF VALVE.
Condition: Unknown
Due 16 September 1987
Resolved 16 September 1987
Navigation
Issued 3 March 1986 Resolved
PROVIDE COAST GUARD APPROVED LINE THROWING APPARATUS.
Condition: Unknown
Due 3 March 1986
Resolved 3 March 1986
Fire Fighting
Issued 3 March 1986 Resolved
HYDROSTATICALLY TEST 28 - 100 LB CO CYLINDERS FOR ENGINEROOM FIXED CO2 AND MUD PIT EXTINGUISHING SYSTEMS.
Condition: Unknown
Due 3 March 1986
Resolved 3 March 1986
Construction/Loadline
Issued 3 September 1985 Resolved
MAKE PERMANENT REPAIRS TO DAMAGE IN SHEER STRAKE IN WAY OF PRELOAD TANKS 37 AND 38.
Condition: Unknown
Due 3 September 1985
Resolved 3 September 1985
Fire Fighting
Issued 12 December 1984 Resolved
PROVIDE FOR ANNUAL SERVICING OF FIXED FIREFIGHTING SYSTEMS.
Condition: Unknown
Due 12 December 1984
Resolved 12 December 1984

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.