DEEPWATER NAUTILUS

Mobile Offshore Drilling Unit · Offshore class · Built 1990s · USCG Heartland District (CGD-H)

DEEPWATER NAUTILUS is a 1999 mobile offshore drilling unit. The Coast Guard has recorded 37 inspections since 2000, most recently in November 2015, along with 11 deficiencies.

Records from 2000 to 2015. Most recent: inspection, 4 November 2015.

Built: 1999
Last inspected: 4 November 2015
Documentation: Not in the documentation file of 10 September 2026
Inspections: 37
Deficiencies: 11 recorded · 0 without a recorded resolution
Controls: None recorded without a removal date
Inspected with: 1 other vessel

Identity

US Official No.

1089430

IMO number

8764781 View on MarineTraffic leaves Maury; a third-party site, nothing from it is stored here

Call sign

YJRQ6

MISLE id

507161

Flag

VANUATU

MMSI

338648000 (licence lapsed)

Maury page id

psix-507161

Inspections, by type

…physical examinations4

…administrative events15

…with no type recorded11

Years with a record 14 calendar years (2000–2015)

The 37 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 11 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 it29051 - Convention (Subpart B), 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

WCZ5694MMSI 338648000 · expired · compulsorily equipped · granted 1 December 1999, cancelled 6 February 2010

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.

Inspected as a tow unit · 1

The Coast Guard recorded this vessel and the following in the same inspection activity — normally a tug and the barges in its tow. A recreational or unclassed hull in the same activity is held and not published, so it does not appear here: these lists are a floor, not a complete manifest.

C-LEADER Industrial Vessel · MISLE 601861 · 9 September 2011 · activity 4152424

Inspection history · 37

4 November 2015 In-Service Inspection

Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 5790783

9 October 2015 Deficiency Check · COC-MODU Renew

Physical examination · USCG Heartland District · USCG Heartland District (CGD-H) · Activity 5739657

6 May 2014 Type not recorded

No type recorded · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 4851570

2 May 2014 Type not recorded

No type recorded · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 4851052

18 December 2011 Type not recorded

No type recorded · Sector Mobile · USCG Heartland District (CGD-H) · Activity 4211372

9 September 2011 Type not recorded

No type recorded · Sector Mobile · USCG Heartland District (CGD-H) · Activity 4152424

22 February 2011 COC-MODU Annual

Type not classified · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3954086

4 March 2010 COC-MODU Renew

Type not classified · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3710617

10 March 2009 COC-MODU Annual

Type not classified · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3440158

18 March 2008 COC-MODU Renew

Type not classified · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3167009

21 March 2007 COC-MODU Annual

Type not classified · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 2893489

21 March 2006 COC-MODU Renew

Type not classified · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 2608911

7 October 2005 Administrative Inspection

Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 2509898

19 April 2005 COC-MODU Annual

Type not classified · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2337617

14 January 2005 Type not recorded

No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2278750

21 April 2004 Certificate of Compliance

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2050741

20 February 2004 Administrative Inspection

Administrative · MSO Mobile · USCG Heartland District (CGD-H) · Activity 2009865

11 January 2004 Type not recorded

No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1991365

3 November 2003 Administrative Inspection

Administrative · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 1941058

24 July 2003 Administrative Inspection

Administrative · MSO Mobile · USCG Heartland District (CGD-H) · Activity 1862577

16 July 2003 Administrative Inspection

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1847864

27 March 2003 Certificate of Compliance

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1763883

26 January 2003 Administrative Inspection

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1735542

11 September 2002 Type not recorded

No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1707543

26 August 2002 Administrative Inspection

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1666611

22 April 2002 Certificate of Compliance

Administrative · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 1603632

1 January 2002 Type not recorded

No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1478243

12 August 2001 Administrative

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1069919

1 June 2001 Type not recorded

No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1066130

31 May 2001 Type not recorded

No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 16603

24 May 2001 Letter of Compliance (Initial/Renewal)

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1461404

15 March 2001 Administrative

Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1060130

9 March 2001 Type not recorded

No type recorded · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 110409

21 August 2000 Deficiency Check

Physical examination · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 821616

7 July 2000 Deficiency Check

Physical examination · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1052702

27 June 2000 Administrative

Administrative · MSO Corpus Christi · USCG Heartland District (CGD-H) · Activity 820124

30 May 2000 Letter of Compliance (Initial/Renewal)

Administrative · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 1381914

Deficiency record · 11

Lifesaving › Embarkation Appliances/Stations › Designated Location

Issued 4 November 2015 Resolved

Launching and recovery appliances should be such that the appliance operator on the unit is able to observe the survival craft at all times during launching and recovery. L/B#1&3 have newly installed davits/winches that do not allow operator to see lifeboat as it goes down to waterline.

Condition: Design Flaw
Action required: 705 - Other - as specified
Due 4 December 2015
Resolved 19 November 2015
Resolution: Crew put a hole or what they called a "viewing port" so that the davit operator could see vessel all the way doen to the waterline

Lifesaving › Lifeboat Equipment › Electric Torch

Issued 4 November 2015 Resolved

All lifesaving appliances should be in working order and ready for immediate use. L/B#3 external blinking navigation light on top of lifeboat is extinguished, replace/repair to original condition.

Condition: Improper/Lack of Maintenance
Action required: 705 - Other - as specified
Due 4 December 2015
Resolved 9 November 2015
Resolution: Recived video from Barge Sup showing that the light on top of lifeboat # 3 was operational.

Electrical › Lighting (emergency) › Lighting Fixture

Issued 20 October 2015 Resolved

Emergency source of power shall provide for a period of 18 hrs, emergency lighting at every embarkation station on deck and over the side. Multiple lights intended to illuminate muster stations and sea sear found extinguished. 1989 MODU Code 5.3.6 40 a,c

Condition: Improper/Lack of Maintenance
Action required: 705 - Other - as specified
Due 20 October 2015
Resolved 20 October 2015
Resolution: replaced all lightbulbs requiring replacement. E-mailed pictures.

Lifesaving › Launching Appliances › Winch

Issued 13 October 2015 Resolved

All LS appliances shall be clearly marked with approval information, including the administration which approved it and any operational restrictions. LB winches for #1 and #3, newly installed, do not have approval plates attached to winches. LSA 1.2.2.9 50 c

Condition: Improper Installation
Action required: 705 - Other - as specified
Due 13 November 2015
Resolved 20 October 2015
Resolution: Provided ABS documentation via email verifying installation and design of newly installed LB winches for #1 and #3. [name withheld] accepted ABS receipt and documentation via email in lieu of plate.

Lifesaving › Launching Appliances › Winch

Issued 13 October 2015 Resolved

All machinery should be of design and consutrction ot reduce to a minimum any danger to POB, with due regard to moving parts. L/B's #1 and #3 newly installed winches do not have adequate protection for persons mustering in immediate area. 1989 MODU Code 4.1.3. 50a,c

Condition: Design Flaw
Action required: 705 - Other - as specified
Due 13 November 2015
Resolved 5 November 2015
Resolution: Pictures submitted and inspected by [name withheld] installed surrounding winches, removing personnel hazard.

Lifesaving › Lifeboat › Watertight Enclosure

Issued 9 October 2015 Resolved

L/B shall maintain are pressure inside the L/B for aperiod of not less than 10 minutes, not falling below the outside atmospheric pressure L/B #2 one-way, transparent plastic "flapper" valve not in working condition. '74 SOLAS ('97) III / 45 16 a,c

Condition: Damaged By Earlier Event
Action required: 705 - Other - as specified
Due 25 October 2015
Resolved 20 October 2015
Resolution: Repaired hinge and knife-edge for proper seal of flapper plate. Emailed picture.

Lifesaving › Lifebuoys › Size

Issued 22 February 2011 Resolved

Replace Liferings for quick release smokes with bridge bouys.

Condition: Improper Installation
Action required: 705 - Other - as specified
Resolved 16 March 2011
Resolution: Cleared per email with picture from barge supervisor [name withheld].

Lifesaving › Buoyant Apparatus › Floating Electric Waterlight

Issued 22 February 2011 Resolved

Replace all batteries in lights for liferings with approved batteries per manufacturer specifications.

Condition: Improper Installation
Action required: 705 - Other - as specified
Resolved 16 March 2011
Resolution: Cleared per email with picture from barge supervisor [name withheld].

Construction/Loadline

Issued 1 June 2001 Resolved

ENSURE THAT ALL POWERED WATER TIGHT DOORS ARE WORKING TO THE SATISFACTION OF A ATTENDING ABS SURVEYOR. SUBMIT COPY OF FINAL ABS REPORT TO THE [name withheld].

Condition: Unknown
Due 14 June 2001
Resolved 14 June 2001

Construction/Loadline

Issued 30 May 2000 Resolved

Demonstrate proper operation of ODME (Oil discharge monitoring equipment) Turner design model TD-4100 on-line monitor.

Condition: Unknown
Due 30 May 2000
Resolved 30 May 2000

Fire Fighting

Issued 30 May 2000 Resolved

Repair smoke detectors to clear ESD fault indiction (four in thruster room,one in mud pit room).

Condition: Unknown
Due 30 May 2000
Resolved 30 May 2000

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.