Nga chart 74012 (10TH ed)
Indian Ocean · HYDROPAC 1044/11
What this record establishes
Archived notice · 2011-05-28 09:08Z
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) · AUSCOAST 116/11 030416Z APR 11.. Issued 2011-04-03 08:41Z. 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
- Indian Ocean. The parsed report position is -15.066, 121.292. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
- issued
- 2011-04-03 08:41Z
- status
- Archived notice
- authority
- AUSCOAST 116/11 030416Z APR 11.
- issued by
- AUSCOAST
- sea
- Indian Ocean
- position
- -15.066, 121.292
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
AUSTRALIA-NORTHWEST COAST. NGA CHART 74012 (10TH ED). ALL NAVIGATIONAL LIGHTS AT DRILL RIG OCEAN AMERICA 15-03.95S 121-17.50E UNLIT.
Reading this warning
- 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.
- Unlit / extinguished
- A light, buoy or structure that is not showing its charted light.
Collected reports in this area · survey operations
35 within 180 nm since 2002 · 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.
- Underwater operations in progress until further notice by M/V offshore solution in area bound by 13-46.00S…2026-02-10
- Underwater operations in progress until further notice by M/V fugro maali in area bound by 13-50.40S…2023-11-29
- Underwater operations until further notice by M/V fugro maali in area bound by 13-50.40S 123-21.10E,…2023-11-29
- Underwater operations in progress until further notice by M/V lay vessel 108 in area bound by 13-44.00S…2023-10-17
- Underwater operations in progress until further notice by three underwater gliders in area bound by…2023-03-20
- Two underwater gliders operating until further notice in area bound by 11-38.00S 118-24.00E, 11-38.00S…2022-11-18
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
56 survey operations listed in force · see all
Record snapshot 2026-10-03 01:15Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
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.