DIAMOND 30

Offshore Supply Vessel · Offshore class · Built 1970s · USCG Heartland District (CGD-H)

DIAMOND 30 is a 1978 offshore supply vessel. The Coast Guard has recorded 19 inspections since 1989, most recently in February 2011, along with 6 deficiencies and 1 casualty investigation in 2010.

Records from 1989 to 2011. Most recent: inspection, 9 February 2011.

Built: 1978
Last inspected: 9 February 2011
Documentation: Not in the documentation file of 10 September 2026
Inspections: 19
Deficiencies: 6 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date
Casualties: 1 investigation · 2010

Identity

598078

—

WCX 8911

163420

Flag

UNITED STATES

MMSI

367391630

Maury page id

psix-163420

Inspections, by type

…physical examinations12

…administrative events5

…with no type recorded2

Years with a record 15 calendar years (1989–2011)

The 19 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 15 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 it119 - Dead Weight, Ton
99 - Regulatory (Subpart C or D), Gross Ton
90 - Regulatory (Subpart C or D), Net 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

WDE7306MMSI 367391630 · active · compulsorily equipped · granted 24 November 2018, expires 21 January 2029 · licensed under a name not among this hull’s recorded names (not shown)

WCX8911MMSI 367130990 · expired · voluntarily equipped · granted 23 December 1997, cancelled 23 February 2008 · 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.

Inspection history · 19

9 February 2011 Administrative Inspection

Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3942126

17 March 2010 Type not recorded

No type recorded · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3698638

4 June 2008 Administrative Inspection · COI Inspection · Examination of Repairs · Deficiency Check · Hull Examination

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3227547

12 July 2007 Annual Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 2992835

12 July 2006 Re-Inspection · Hull Examination

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 2836152

14 July 2005 Re-Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2424522

8 September 2004 Re-Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2184287

13 July 2004 Administrative Inspection

Administrative · Marine Safety Center (MSC) · Activity 2131794

26 January 2004 Security Plan Review - VSP

Administrative · Marine Safety Center (MSC) · Activity 1992976

24 April 2003 COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1779063

20 February 2002 COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1487600

21 February 2001 COI Inspection · Hull Examination

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1410545

30 January 2001 Administrative

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1058949

30 March 2000 COI Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1391264

2 March 1999 Deficiency Check

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 805065

10 February 1999 Re-Inspection

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1429082

30 January 1998 Initial Certification · Hull Examination

Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1383387

31 December 1997 Administrative

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 783210

28 February 1989 Type not recorded

No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1044672

Deficiency record · 6

Electrical › Electrical Distribution System (service) › Panelboard

Issued 2 March 2009 Resolved

Electrical panel was in total direpair. Box was not enclosed with bare wires everywhere. Repair or install new box to take the place of box.

Action required: 17 - Rectify deficiencies prior to departure
Due 3 March 2009
Resolved 3 March 2009
Resolution: New box installed correctly.

Construction/Loadline › Hull › Hull Plating

Issued 2 March 2009 Resolved

A hole in hull was found in the bow section, water was coming into vessel.

Action required: 17 - Rectify deficiencies prior to departure
Resolved 3 March 2009
Resolution: Insert was made and hole was repaired.

Engineering › Reduction Gearing/Clutches › Gear

Issued 16 October 2008 Resolved

Jacking gear was slipping while vessel was trying to jack up. Repair jacking system prior to deeparture.

Action required: 17 - Rectify deficiencies prior to departure
Resolved 3 March 2009
Resolution: Jacking system was repaired and tested sat.

Engineering › Steering Gear System › Hydraulic Hose

Issued 16 October 2008 Resolved

Hydraulic line for aft leg tower was leaking excessively. Repair line.

Action required: 17 - Rectify deficiencies prior to departure
Due 3 March 2009
Resolved 3 March 2009
Resolution: Hose repaired.

Lifesaving › Lifefloat › Float Free

Issued 4 June 2008 Resolved

New weak link is required for lifefloat.

Action required: 17 - Rectify deficiencies prior to departure
Resolved 3 March 2009
Resolution: New weak link installed onboard.

Lifesaving

Issued 10 February 1999 Resolved

DEMONSTRATE COMPLIANCE WITH THE 8TH COAST GUARD DISTRICT'S POLICY "RESCUE BOAT REQUIREMENTS ON OFFSHORE SUPPLY VESSELS" DATED 12NOV98 TO THE SATISFACTION OF THE ATTENDING MARINE INSPECTOR.

Condition: Unknown
Due 10 February 1999
Resolved 10 February 1999

Casualty record · 1

17 March 2010Major Marine Casualty · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 3698638

Each line is an incident investigation the Coast Guard recorded with this hull among the vessels involved, with the date and the classification the Coast Guard gave it, and the bridge, lock or dam the investigation names where it names one. Involvement is not fault. The investigation narrative is not published. Source: IIR, through 2026.

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.