Other

Nga identified inaccuracies between the traffic separation scheme (tss) on libraries A2357840 and H2357840

South China Sea · Hong Kong · HYDROPAC 795/16

What this record establishes

Archived notice · 2016-04-07 23:13Z

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) · SFHS 18 MAR 16.. Issued 2016-03-18 18:23Z. 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 · Hong Kong. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.

Related notices and cancellation links

issued
2016-03-18 18:23Z
status
Archived notice
authority
SFHS 18 MAR 16.
issued by
SFHS
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SOUTH CHINA SEA.
HONG KONG.
DNC 23.
CHART 93733.
1. NGA IDENTIFIED INACCURACIES BETWEEN THE
   TRAFFIC SEPARATION SCHEME (TSS) ON LIBRARIES
   A2357840 AND H2357840. MARINERS ARE ADVISED
   TO USE TSS ON H2357840.
2. CORRECTIONS FOR HARDCOPY CHART U.S. 93733
   ARE LOCATED IN NTM 51/15. MARINERS SHOULD
   TEMPORARILY USE THESE CORRECTIONS TO UPDATE
   A2357840.
3. NGA WILL NOTIFY USERS WHEN THE CORRECTIONS
   TO DNC ARE COMPLETED.

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.
Chart reference
The number of the nautical chart on which the reported position lies.
Notice to Mariners
The weekly publication of permanent chart corrections — the slower, permanent counterpart of a navigational warning.

All warning terms →

Nearby notices listed in force · within 120 nm

No parsed position is available for this comparison.

Worldwide in the collected sources

23 other warnings listed in force · see all

Record snapshot 2026-10-02 02:32Z; 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.