Incidents · sinking

F/V na 4611TS, three persons on board, sank in 19-09.00N 105-47.00E at 021900Z may

South China Sea · HYDROPAC 1468/24

What this record establishes

Cancelled notice · 2026-08-14 18:10Z

This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · MRCC VIETNAM 0/24 030517Z MAY 24.. Issued 2024-05-03 05:34Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-08-17 15:50Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: South China Sea. The parsed report position is 19.150, 105.783. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the South China Sea →

issued: 2024-05-03 05:34Z
status: Cancelled notice
authority: MRCC VIETNAM 0/24 030517Z MAY 24.
sea: South China Sea
position: 19.150, 105.783
vessel: F/V NA 4611TS
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z

Original warning text

GULF OF TONKIN.
VIETNAM.
DNC 23.
F/V NA 4611TS, THREE PERSONS ON BOARD,
SANK IN 19-09.00N 105-47.00E AT 021900Z MAY.
ONE PERSON RESCUED, TWO PERSONS REMAIN
MISSING. VESSELS IN VICINITY REQUESTED TO
KEEP A SHARP LOOKOUT, ASSIST IF POSSIBLE.
REPORTS TO MRCC VIETNAM,
FAX: 8422 5398 1615,
E-MAIL: HPLES-GMDSS@HPLES.COM.VN.

Reading this warning

DNC (Digital Nautical Chart): A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Persons on board (POB): The number of people reported aboard a vessel in distress, overdue or missing.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
Keep a sharp lookout: A request to every ship in the area to watch for the vessel, people or object described.
Assist if possible: The second half of the standard rescue request: ships able to help are asked to do so.
MRCC (Maritime Rescue Coordination Centre): A rescue coordination centre for maritime cases only, such as MRCC Fort-de-France or MRCC Vietnam.
GMDSS: The Global Maritime Distress and Safety System: the internationally agreed set of radio services ships use for distress alerting and safety broadcasts.

All warning terms →

Collected reports in this area · distress & casualty cases (archived)

539 within 180 nm since 1999 · 1 in the last 12 months · 0 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

0 distress & casualty cases (archived) listed in force · see all

Record snapshot 2026-09-24 12:59Z; source collection times vary.

Incidents

Search-and-rescue broadcasts, published only once a case has been closed for 30 days: groundings, sinkings, capsizes, fires, man overboard, overdue vessels. Nothing here is live. All current distress & casualty cases (archived) →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.