PACIFIC MOONSTONE is a 2021 tank ship. The Coast Guard has recorded 10 inspections since 2021, most recently in August 2025, along with 5 deficiencies and 3 operational controls.
Records from 2021 to 2025. Most recent: inspection, 14 August 2025.
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 Tank Ship class in Maury's sources begin in 2016.
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.
Tonnage as PSIX records it50191 - Dead Weight, Ton 61278 - Displacement, Ton 13762 - Convention (Subpart B), Net Ton 30087 - Convention (Subpart B), Gross 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
Every record for this hull, in one document — $299
Every recorded inspection, 2016 to
2026 for this class, in one chronology · every deficiency, with system, dates
and resolution · operational controls imposed and removed · every name this
hull has been recorded under · the vessels it was inspected alongside, and when
· how its record compares with hulls of similar age and size, as a fact about the
population and never a judgement about this vessel.
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Inspection history · 10
14 August 2025COC-CHEM & TVE Renew · PSC B
Physical examination · Sector Mobile · USCG Heartland District (CGD-H) · Activity 8207558
11 August 2025Administrative Inspection
Administrative · Sector Mobile · USCG Heartland District (CGD-H) · Activity 8207617
14 - Pollution Prevention › 141 - MARPOL Annex I › Control of discharge
Issued 7 November 2023Resolved
Any discharge into the sea of oil or oily mixtures shall be prohibited except when rate of discharge does not exceed 30 litres per nautical mile. PSCO observed discharge rate exceeding capacity of ODME as specified by P&A manual.
Action required: 10 - Deficiency Rectified
Due 21 November 2023
Resolved 3 February 2024
Resolution: Vessel submitted corrective action report pertaining to the vessels ODME discharge rates.
01 - Certificates & Documentation › 013 - Documents › Oil record book
Issued 7 November 2023Resolved
Oil Record Book Part II shall be completed when any of the following cargo operations take place: claning of cargo tanks. PSCO observed 18.9 cubic meters of oil from vessel's residue oil tank unaccounted for in Oil Record Book Part II following tank cleaning.
Action required: 10 - Deficiency Rectified
Resolved 7 November 2023
Resolution: Corrected on the spot.
01 - Certificates & Documentation › 013 - Documents › Oil record book
Issued 7 November 2023Resolved
Oil Record Book Part II shall be completed when any of the following cargo operations take place: discharge of water from slop tanks. PSCO observed discharge entry for 182.8 cubic meters but ODME records show only approximately 40 cubic meters discharged per flow rate, leaving 142.8 cubic meters unaccounted for.
Action required: 10 - Deficiency Rectified
Resolved 7 November 2023
Resolution: corrected on the spot.
15 - Safety Management Systems (ISM) › N/A - No Subsystem › Resources and personnel
Issued 7 November 2023Resolved
The company should ensure that all personnel invloved in the company's safety management system have an adequate understanding of relevant rules, regulations, codes and guidelines. All cargo operations shall be clearly and accurately recorded as required (SMS/Intertanko Oil Record Book Part II, Page 6). As delineated in deficiencies 1-3, the company failed to ensure that all personnel involved in the company's SMS had an adequate understanding of the relevant rules, regulation, codes, and guidelines. An additional internal verification of the vessel's SMS, focusing on record keeping and ODME operation is required.
Action required: 50 - Rectify deficiencies w/in 30 days
Resolved 3 February 2024
Resolution: Vessel submitted corrective action report detailing additional training given to crew and new proceedures and checklists that have been put into place preventing future incidents.
07 - Fire Safety › N/A - No Subsystem › Inert gas system
Issued 16 August 2022Resolved
For tankers of 20,000 D.W.T., the protection of the cargo tanks shall be achievedby a fixed inert gas system I.A.W. FSS code. The inert gas system is inoperable. No Cargo OPS are to be conducted until verified by R.O.
74 SOLAS (2019) II-2 REG. 5.5
Condition: Damaged By Earlier Event
Action required: 17 - Rectify deficiencies prior to departure
Resolved 19 August 2022
Resolution: Received class and technician report attesting to proper operation of IGG; witnessed testing of alarms and shutdowns, all sat.
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.