← All vessels
ROWAN GORILLA IV
ROWAN GORILLA IV is a 1986 mobile offshore drilling unit. The Coast Guard has recorded 4 inspections since 2016, most recently in July 2017, along with 8 deficiencies — 2 with no resolution recorded — and 3 casualty investigations between 2001 and 2008.
Records from 2001 to 2017. Most recent: inspection, 12 July 2017.
- Built
- 1986
- Last inspected
- 12 July 2017
- Documentation
- Not in the documentation file of 10 August 2026
- Deficiencies
- 8 recorded · 2 without a recorded resolution
- Controls
- None recorded without a removal date
- Casualties
- 3 investigations · 2001–2008
This record may be incomplete: the most recent inspection recorded for this vessel was 9 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 23 August 2026, retrieved 5 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 2016.
Inspection record
Last inspected
12 July 2017
Deficiencies
8 recorded · 2
without a recorded resolution
…past their stated due date2
Operational controls
None recorded without a removal date
Years with a record
2 calendar years (2016–2017)
Every line above is a count of records the US Coast Guard wrote, or a date it recorded.
A blank resolution means none was recorded in this data; it does not establish that a
deficiency is outstanding. Years with a record are calendar years in which a record
exists, not years in service. What Maury does
not do.
Identity
907109
8754578
V7AJ3
280381
Flag
MARSHALL ISLANDS
Maury page id
psix-280381
Documentation record
Tonnage as PSIX records it11556 - Convention (Subpart B), Gross Ton
3466 - Convention (Subpart B), Net Ton
0 - Dead Weight, Ton
3466 - Convention (Subpart B), Net Ton
0 - Dead Weight, Ton
This hull's Official Number is not in the NVDC file dated 10 August 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.
Vessel history report
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. What a sparse-record report looks like.
Inspection history · 4
12 July 2017
COC-MODU Renew
Type not classified · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 6206355
14 March 2017
In-Service Inspection
Physical examination · Sector New Orleans · USCG Heartland District (CGD-H) · Activity 6105614
21 July 2016
COC-MODU Annual
Type not classified · Marine Safety Unit Morgan City · USCG Heartland District (CGD-H) · Activity 5949410
21 February 2016
In-Service Inspection
Physical examination · USCG Heartland District · USCG Heartland District (CGD-H) · Activity 5819084
Deficiency record · 8
Lifesaving › Lifeboat › Fire Protection (water spray system)
Issued 12 July 2017
Resolved
L/B #2 had a kink on the deluge fire system at the stern of the boat
Lifesaving › Lifeboat › Self-contained Air Support System
Issued 12 July 2017
No resolution recorded
L/B #2 bottle pressure was low on air.
Stability › Watertight Integrity › General
Issued 12 July 2017
No resolution recorded
Watertight boundaries MCTs were found to be wasted. CG/Class/Flag has agreed that MCTs repair will be done during next drydock and def will be cleared once proof of repair has been provided to CG prior to next drilling ops.
Fire Fighting › Fire Main › Condition
Issued 21 July 2016
Resolved
Multiple leaks found on steel firewater piping and on a valve body gland.
Fire Fighting › Fixed Gas Fire Extinguishing System › Tanks
Issued 21 July 2016
Resolved
FM200 tank used for protection of the emergency generator space found to be badly corroded. Replace, repair or prove that tank is in working condtion by use of NDT.
Fire Fighting › Structural - A Class Divisions › Doors
Issued 21 July 2016
Resolved
Stairwell door at top level found to have 2 through holes in it due to replacement of previous doorknob with a smaller doorknob. Replace/repair to original condition.
Electrical › Electrical Distribution System (service) › Conductor
Issued 21 July 2016
Resolved
Multiple connectors going to "gumbo box connector' in hazardous location found to be fractured, frayed and wasted. Replace connectors to original hazardous location specification.
Stability › Watertight Integrity › Weathertight Enclosure
Issued 21 July 2016
Resolved
Several main deck MCTs were found to be wasted and worn causing failed watertight seak required by loadline. Replace/repair MCTs to original condition.
Casualty record · 3
25 September 2001Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 1487096
29 July 2005Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 2466972
20 February 2008Major Marine Casualty · role: Involved in a Marine Casualty · serious marine incident, as classified · 2 dead · activity 3153768
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. 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.