ZAPATA SOVEREIGN

Mobile Offshore Drilling Unit · Offshore class · Built 1980s · USCG Oceania District (CGD-O)

ZAPATA SOVEREIGN is a 1981 mobile offshore drilling unit. The Coast Guard has recorded 17 inspections since 1985, most recently in November 1990, along with 21 deficiencies.

Records from 1985 to 1990. Most recent: inspection, 19 November 1990.

Built: 1981
Last inspected: 19 November 1990
Documentation: Not in the documentation file of 10 September 2026
Inspections: 17
Deficiencies: 21 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date

Identity

640517

—

KNDJ

53101

Flag

UNITED STATES

MMSI

—

Maury page id

psix-53101

Inspections, by type

…physical examinations11

…administrative events5

…with no type recorded1

Years with a record 6 calendar years (1985–1990)

The 17 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 it4181 - Regulatory (Subpart C or D), Net Ton
4181 - 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

KNDJMMSI not assigned · expired · voluntarily equipped · granted 6 November 1986, cancelled 6 November 1991 · licensed under a name not among this hull’s recorded names (not shown)

FCC Universal Licensing System ship-station file of 6 September 2026, matched to this hull on its US Official Number. Status and dates are the file’s own. The licensee is not read from the file and is not shown. A lapsed licence’s MMSI is still the number the vessel transmitted under while it was valid.

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 · 17

19 November 1990 Administrative

Administrative · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1300668

26 August 1990 Re-Inspection

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 909606

21 August 1990 Deficiency Check

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1235910

12 September 1989 Hull Examination · COI Inspection

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 900293

13 June 1989 Type not recorded

No type recorded · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1338226

28 April 1989 Drydock Extension

Administrative · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1043634

3 February 1989 Deficiency Check

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1350623

14 September 1988 Re-Inspection · Drydock Extension

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1208725

3 November 1987 Administrative

Administrative · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1328162

20 October 1987 Administrative

Administrative · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1324535

1 October 1987 Deficiency Check

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1324470

23 September 1987 Deficiency Check

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1319572

12 September 1987 COI Inspection

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1024984

6 September 1987 Examination of Repairs

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1013439

4 November 1986 Deficiency Check · Re-Inspection · Hull Examination

Physical examination · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1007718

28 February 1986 Credit Drydock

Administrative · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 1303762

13 November 1985 COI Inspection

Physical examination · ACTIVITIES NEW YORK · USCG Northeast District (CGD-NE) · Activity 1003198

Deficiency record · 21

Construction/Loadline

Issued 12 September 1989 Resolved

CROP AND RENEW SIDE SHELL AND ASSOCIATED INTERNALS IN NO. 2 PORT SEA WATER BALLAST PRELOAD TANK IN WAY OF INDENT LOCATED BETWEEN FRAMES 2 & 3 AT THE TURN OF THE BILGE.