Survey operations in progress until further notice by M/V maersk defender in area bound by 25-13N 056-24E,…
Gulf of Oman · HYDROPAC 1936/04
What this record establishes
Archived notice · 2005-01-10 18:14Z
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 IX 282/04 140855Z DEC 04.. Issued 2004-12-18 14:54Z. 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
- Gulf of Oman. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Survey operations 02 dec until further notice by M/V jaersk defender along trackline joining 24-50.20N…cancelled by this notice
- Cancel HYDROPAC 1936/04 and this msg, operations completedlater cancellation notice
- issued
- 2004-12-18 14:54Z
- status
- Archived notice
- authority
- NAVAREA IX 282/04 140855Z DEC 04.
- NAVAREA
- NAVAREA IX · named as the source of this relay
- sea
- Gulf of Oman
- position
- 24.910, 56.785
- vessel
- M/V MAERSK DEFENDER · 20 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V MAERSK DEFENDER IN AREA BOUND BY 25-13N 056-24E, 25-04N 056-20E, 24-36N 057-13E, 24-43N 057-16E. WIDE BERTH REQUESTED. 2. CANCEL HYDROPAC 1857/04.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
Collected reports in this area · survey operations
131 within 180 nm since 1999 · 2 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 17 sep by M/V hua xing long in 25-11.30N 056-24.40E2026-09-14
- Underwater operations 08 thru 10 sep by vessel wish way in 25-11.30N 056-24.40E2026-09-07
- Survey operations in progress until 23 dec in area bound by 24-27.90N 053-22.80E, 24-32.20N 053-45.00E,…2023-10-24
- Salvage operations in progress until further notice in vicinity 25-26.86N 055-14.35E2023-09-15
- Survey operations 06 jun until further notice by M/V lanpan 22 along tracklines joining: a. 25-40.91N…2023-06-05
- Underwater operations in progress until further notice in vicinity 25-26.80N 055-14.40E2023-05-26
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
- GPS, GNSS, and AIS interference reported in vicinity of fujairah (25-07.33N 056-20.05E)Nav aids · 27.7 nm
- Derelict 274 meter M/V adalynn unlit and anchored in 25-36.99N 056-24.85EDerelicts · 46.9 nm
- Lattice beacon 25-38.19N 057-45.86E inoperativeNav aids · 68.7 nm
- Mine reported in 26-24.58N 056-20.67EMines · 93.1 nm
- Anchoring prohibited in area bound by 25-26.59N 055-05.88E, 25-28.17N 055-06.69E, 25-28.32N 055-09.15E,…Other · 95.1 nm
- Fish farms established in areas bound by: a. 26-43.84N 056-56.88E, 26-43.80N 056-56.95E, 26-43.74N…Other · 109.6 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 04:33Z; 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.