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MAHI MAHI
Offshore Supply Vessel · Offshore class · Built 1980s · USCG Heartland District (CGD-H) · Other hulls named MAHI MAHI
MAHI MAHI is a 1980 offshore supply vessel. The Coast Guard has recorded 41 inspections since 1989, most recently in February 2012, along with 34 deficiencies and 1 casualty investigation in 2007.
Records from 1989 to 2012. Most recent: inspection, 9 February 2012.
- Built
- 1980
- Last inspected
- 9 February 2012
- Documentation
- Not in the documentation file of 10 September 2026
- Deficiencies
- 34 recorded · 0 without a recorded resolution
- Controls
- None recorded without a removal date
- Casualties
- 1 investigation · 2007
Identity
623835
WDC6569
186754
Flag
UNITED STATES
366817570, 367057990 (licence lapsed)
Maury page id
psix-186754
Inspections, by type
…with no type recorded9
Years with a record
22 calendar years (1989–2012)
The 41 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 14 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 it97 - Regulatory (Subpart C or D), Gross Ton
66 - Regulatory (Subpart C or D), Net Ton
66 - 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
WDC6569MMSI 367057990 · expired · compulsorily equipped · granted 22 July 2005, cancelled 26 September 2015
WDA5203MMSI 366817570 · cancelled · compulsorily equipped · granted 6 July 2001, cancelled 8 August 2006 · licensed under a name not among this hull’s recorded names (not shown)
WCV8456MMSI not assigned · expired · compulsorily equipped · granted 1 July 1999, cancelled 1 April 2006 · 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.
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.
MR. ETHAN Passenger (Inspected) · MISLE 395805 · 1 October 2007 · activity 3076703Inspection history · 41
9 February 2012
Administrative Inspection
Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 4241199
5 August 2011
Administrative Inspection
Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 4105756
7 December 2009
Administrative Inspection
Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3645781
1 December 2008
Examination of Repairs · Administrative Inspection · Hull Examination · Deficiency Check · Ballast Water Examination · COI Inspection
Physical examination · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3372283
10 November 2008
Administrative Inspection
Administrative · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 3360485
1 October 2007
Type not recorded
No type recorded · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 3076703
23 November 2005
Security Plan Review - VSP
Administrative · Marine Safety Center (MSC) · Activity 2539893
11 August 2005
Type not recorded
No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2459515
31 October 2004
Type not recorded
No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2242010
24 May 2004
Deficiency Check
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2077087
11 March 2004
Hull Examination · Examination of Repairs · Re-Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 2022779
2 September 2003
Re-Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1894256
30 September 2002
Re-Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1681955
5 November 2001
Hull Examination · Re-Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1476748
26 May 2000
COI Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1412106
17 August 1999
Administrative
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1112759
28 May 1999
Administrative
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 801989
11 February 1999
Hull Examination · COI Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1388729
8 October 1998
Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 767970
11 September 1998
Type not recorded
No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 108783
3 September 1998
Type not recorded
No type recorded · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 202066
5 June 1998
Deficiency Check
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 793074
12 May 1998
Re-Inspection
Physical examination · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1441380
4 February 1998
Type not recorded
No type recorded · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 63600
1 May 1997
COI Inspection · Hull Examination
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1451192
28 January 1997
Administrative
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1096374
22 May 1996
Administrative
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1084816
16 May 1996
Administrative
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1083225
6 March 1996
Deficiency Check
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 885625
8 November 1995
COI Inspection
Physical examination · MSO PORT ARTHUR · USCG Heartland District (CGD-H) · Activity 1405811
7 December 1994
Hull Examination · Re-Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1356929
22 November 1993
COI Inspection
Physical examination · MSO NEW ORLEANS · USCG Heartland District (CGD-H) · Activity 1353492
23 July 1993
Type not recorded
No type recorded · MSO Mobile · USCG Heartland District (CGD-H) · Activity 179897
28 June 1993
Type not recorded
No type recorded · MSO Mobile · USCG Heartland District (CGD-H) · Activity 1155610
7 June 1993
Administrative
Administrative · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1138789
20 December 1992
Re-Inspection · Hull Examination
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1376903
19 December 1991
COI Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1257640
21 March 1991
Deficiency Check
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 927727
27 December 1990
Re-Inspection
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 993056
17 August 1990
Examination of Repairs
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 923607
1 December 1989
Inclining Experiment · Hull Examination · Initial Certification
Physical examination · MSO MORGAN CITY · USCG Heartland District (CGD-H) · Activity 1229252
Deficiency record · 34
Navigation › Collision/Grounding Avoidance › Navigation Lights
Issued 11 March 2004
Resolved
Relocate sidelights to comply with COLREG's, sidelights currently located forward of forward most mast light.
Construction/Loadline
Issued 2 September 2003
Resolved
Angles on port side of deck house wasted, crop and renew.
Construction/Loadline
Issued 2 September 2003
Resolved
Temporary repairs (doublers) on deck house at main deck connections to be removed and inserted.
Construction/Loadline
Issued 2 September 2003
Resolved
MSD tank vent at through bulkhead penetration make weathertight.
Construction/Loadline
Issued 2 September 2003
Resolved
Port/stbd leg tower housings holed, UT and make repairs as required.
Construction/Loadline
Issued 2 September 2003
Resolved
Due to visual signs of wastage provide UT report of hull at next drydock.
Lifesaving
Issued 11 February 1999
Resolved
DEMONSTRATE COMPLIANCE WITH THE EIGHTH COAST GUARD DISTRICT'S POLICY "RESCUE BOAT REQUIREMENTS ON OFFSHORE SUPPLY VESSELS" DATED 12NOV98 TO THE SATISFACTION OF THE ATTENDING MARINE INSPECTOR.
Engineering
Issued 12 May 1998
Resolved
Replace flame screens for all fuel/lube oil vents and clean vent screens for voids.
Navigation
Issued 12 May 1998
Resolved
Provide current copies of 46 CFR 90 to 139, Coast Pilot and charts of operating area.
Documentation
Issued 12 May 1998
Resolved
Provide up to date operations manual on board.
Navigation
Issued 12 May 1998
Resolved
Prove proper operation of rudder angle indicators on bridge and in engineroom.
Lifesaving
Issued 12 May 1998
Resolved
Properly mark all life preserver and lifebuoy locations.
Electrical
Issued 12 May 1998
Resolved
Properly hard wire air compressor for control air system w/ marine grade cable.
Fire Fighting
Issued 12 May 1998
Resolved
Replace 1 1/2" gate valve on port fire main station on main deck.
Lifesaving
Issued 12 May 1998
Resolved
Remove water from Port and Stbd lazarettes.
Engineering
Issued 12 May 1998
Resolved
Provide plugs for F/O and L/O tank discharge pipes.
Electrical
Issued 12 May 1998
Resolved
Provide metal support bands for all new vertical and horizontal cable runs.
Engineering
Issued 6 March 1996
Resolved
PROVIDE ID PLATE AND DOCUMENTATION FOR AIR RECEIVER (FOR DEBALLASTING PADS)IN STBD VOID (FWD). PROHIBITED FROM USING AIR RECEIVER UNTIL THIS REQUIREMENT IS CLEARED BY COGNIZANT OCMI.
Engineering
Issued 8 November 1995
Resolved
PROVIDE A 30 BY 30 IN MESH FLAME SCREEN ON VENTS TO LUBE OIL TANK & TO DIESEL OIL TANK FOR STBD 50 TON CRANE.
Accommodation/Occupational Safety
Issued 8 November 1995
Resolved
REPAIR/REPLACE 2 SECTIONS OF HANDRAIL ON PORT BOW.
Electrical
Issued 8 November 1995
Resolved
INSTALL COVER ON OPEN ELECTRICAL BOX IN FWD PORT VOID.
Construction/Loadline
Issued 8 November 1995
Resolved
REPAINT DRAFT MARKS & VSL NAME ON STERN.
Lifesaving
Issued 8 November 1995
Resolved
REPLACE SEA PAINTERS TO LIFE FLOATS.
Construction/Loadline
Issued 8 November 1995
Resolved
REPAIR/REPLACE VENT TO #5 STBD AFT VOID & #1 STBD WING VOID VENT.
Construction/Loadline
Issued 8 November 1995
Resolved
LUBRICATE DOGS TO WATERTIGHT DOORS (3) ON MAINDECK.
Construction/Loadline
Issued 8 November 1995
Resolved
RENEW GASKETS IN WATERTIGHT DOORS TO PORT & STBD STEERING GEAR ROOMS.
Engineering
Issued 8 November 1995
Resolved
PRESSURE TEST OIL SERVICE HOSES (3).
Deck/Cargo
Issued 8 November 1995
Resolved
PERFORM WEIGHT TEST OF STBD 50 TON CRANE AFTER REPAIRS.
Electrical
Issued 8 November 1995
Resolved
REINSTALL GENERAL LIGHTING COVER IN PORT STEERING ROOM.
Engineering
Issued 8 November 1995
Resolved
PROVIDE ID PLATE FOR AIR RECEIVER IN FWD STBD VOID.
Construction/Loadline
Issued 8 November 1995
Resolved
PLUG OFF THROUGH BULKHEAD FITTINGS ON FWD ENGINEROOM BULKHEADS PORT & STBD.
Documentation
Issued 1 December 1989
Resolved
PROVIDE ON BOARD A COAST GUARD ISSUED STABILITY LETTER.
Documentation
Issued 1 December 1989
Resolved
SUBMIT PLANS SHOWING GENERAL ARRANGEMENT, INBOARD AND OUTBOARD PROFILE AND STRUCTURAL ANALYSIS OF ALL LEGS AND LEG TOWER SUPPORTS TO [name withheld] FOR APPROVAL.
Documentation
Issued 1 December 1989
Resolved
PROVIDE AN OPERATING MANUAL MEETING THE APPLICABLE SECTIONS OF 46 CFR 109.121 TO [name withheld] FOR APPROVAL.
Casualty record · 1
1 October 2007Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 3076703
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.