Nav aids

Radiobeacon at chui light 33-44.6S 053-22.5W inoperative until 100300Z jul

South Atlantic Ocean · HYDROLANT 135/17

What this record establishes

Archived notice · 2017-01-17 19:26Z

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 V COASTAL 51/17 132026Z JAN 17.. Issued 2017-01-13 20:37Z. 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 Atlantic Ocean. The parsed report position is -33.743, -53.375. 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

Current notices and reporting history in the South Atlantic Ocean →

issued
2017-01-13 20:37Z
status
Archived notice
self-cancels
2017-07-10 04:00Z
authority
NAVAREA V COASTAL 51/17 132026Z JAN 17.
NAVAREA
NAVAREA V · named as the source of this relay
issued by
NAVAREA V COASTAL
sea
South Atlantic Ocean
position
-33.743, -53.375
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTH COAST.
DNC 01.
CHART 24060, 24080.
1. RADIOBEACON AT CHUI LIGHT 33-44.6S 053-22.5W
   INOPERATIVE UNTIL 100300Z JUL.
2. CANCEL HYDROLANT 117/17.
3. CANCEL THIS MSG 100400Z JUL 17.

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.
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.
Inoperative / unreliable / off air
An aid or radio service is not working as charted or published.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · aids-to-navigation notices

100 within 180 nm since 1998 · 4 in the last 12 months · 1 listed in force now

98
00
05
10
15
20
25
26

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

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

134 aids-to-navigation notices listed in force · see all

Record snapshot 2026-10-03 01:28Z; source collection times vary.

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

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.