Structure reported in 17-29.70N 111-09.80E
South China Sea · HYDROPAC 854/23
What this record establishes
Archived notice · 2023-03-28 14:00Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XI 88/23 101819Z MAR 23.. Issued 2023-03-14 14:23Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- South China Sea. The parsed report position is 17.495, 111.163. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROPAC 8/23, 854/23 and this msglater cancellation notice
Current notices and reporting history in the South China Sea →
- issued
- 2023-03-14 14:23Z
- status
- Archived notice
- authority
- NAVAREA XI 88/23 101819Z MAR 23.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- South China Sea
- position
- 17.495, 111.163
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTH CHINA SEA. CHINA. DNC 23. STRUCTURE REPORTED IN 17-29.70N 111-09.80E.
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.
- 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.
Collected reports in this area · other warnings
8 within 180 nm since 2000 · 0 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.
- Platform reported in 17-48N 110-04E2018-03-26
- F/V dna 90415-TS requesting assistance in vicinity 17-03N 108-17E at 150001Z jan2018-01-15
- 200 meter long pipe adrift vicinity 16-17.3N 113-19.6E at 240944Z jul2015-07-24
- Two men overboard from F/V 96049-TS in 17-11N 113-00E at 232300Z mar2015-03-25
- Eight meter long unmanned orange life boat adrift in 16-40.6N 113-36.6E at 220215Z nov2011-11-22
- Pipelaying operations in progress until 15 apr in area bound by 19-37.5N 112-07.0E, 19-40.0N 112-04.0E,…2002-01-04
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
23 other warnings listed in force · see all
Record snapshot 2026-09-29 18:12Z; source collection times vary.
Other
Everything the classifier did not place elsewhere. All current other warnings →
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.