NANHAI 502 is a 1978 research vessel. The Coast Guard has recorded 3 inspections since 1998, most recently in September 1999, along with 5 deficiencies — 1 with no resolution recorded —.
Records from 1998 to 1999. Most recent: inspection, 1 September 1999.
The 3 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 27 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 Research Ship class in Maury's sources begin in 1980.
Share this recordDownload vessel cardDownload QRMaury, US Coast Guard vessel record for NANHAI 502, retrieved 18 September 2026. mauryrecords.com/v/psix-485105.html
Documentation record
Tonnage as PSIX records it279 - Regulatory (Subpart C or D), Net Ton 931 - Regulatory (Subpart C or D), 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
No FCC ship-station licence is recorded against this Official Number in the file of
6 September 2026. That is a fact about the licence file, not about the radio.
A report is not offered for this hull: Its record holds only 1 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. Reports.
Inspection history · 3
1 September 1999Type not recorded
No type recorded · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 432354
30 December 1998Type not recorded
No type recorded · MSU GALVESTON · USCG Heartland District (CGD-H) · Activity 424242
23 November 1998Type not recorded
No type recorded · MSO HONOLULU · USCG Oceania District (CGD-O) · Activity 422303
THE FIRE MAIN PIPE ON THE PORT SIDE OF THE MAIN DECK WAS HOLED ABOUT ONE INCH IN DIAMETER DUE TO RUSTING OUT, CAUSING A LOSS IN PRESSURE ON THE FORWARD FIRE FIGHTING HYDRANTS.
Condition: Unknown
Due 10 September 1999 — due date passed with no resolution recorded
Engineering
Issued 23 November 1998Resolved
Repair soft patch on s/w discharge line for #4 generator to satisfaction ofattending class society prior to 23DEC98.
Condition: Unknown
Due 28 January 1999
Resolved 28 January 1999
Engineering
Issued 23 November 1998Resolved
Repair soft patches on s/w supply line for bow thruster to satisfaction of attending class surveyor prior to 23DEC98.
Condition: Unknown
Due 28 January 1999
Resolved 28 January 1999
Engineering
Issued 23 November 1998Resolved
Repair soft patch on s/w supply line for port side MDE l/o heat exchanger to satisfaction of attending class surveyor prior to 23DEC98.
Condition: Unknown
Due 28 January 1999
Resolved 28 January 1999
Electrical
Issued 23 November 1998Resolved
Provide record of class approval for port lifeboat battery charging system installation prior to 23DEC98.
Condition: Unknown
Due 28 January 1999
Resolved 28 January 1999
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.
