Ferris shoal AIS aid to navigation mmsi 995036163 in position 19-51.20S 150-20.20E unreliable
4 notices · issued 2026-10-01 to 2026-10-01
What the reports establish
These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.
- Earliest dated evidence
- AUSCOAST 309/26
2026-10-01 03:24Z - Latest dated evidence
- AUSCOAST 312/26
2026-10-01 22:55Z - Recorded notice status
- 0 listed active
4 cancelled or archived
Collected from Australian Maritime Safety Authority NAVAREA X + AUSCOAST (CC BY 4.0). 2 notices repeat earlier wording. Issue dates order the reports, not the start and end of the underlying situation. A cancelled notice does not confirm recovery.
Current notices and reporting context in the Coral Sea →What the numbers show
The 4 located notices give 2 distinct positions; the two farthest apart are 3.6 nautical miles apart.
2 of the 4 notices repeat an earlier notice's wording apart from their cancellation lines — typically a warning reissued unchanged.
Reading these warnings
- Shoal / reported depth
- Water shallower than the chart shows — a newly found shoal, a reported depth, or less water than charted.
- AIS (Automatic Identification System)
- The radio transponder system that broadcasts a ship's identity, position, course and speed — and can mark a hazard with a virtual beacon.
- 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.
Report comparison · 4 notices
Each report is compared with an earlier notice it explicitly cancels, when available, or with the preceding report. Changes refer to recorded wording and parsed fields; quoted lines are textual differences, not a verified account of how an incident developed. Nearby reports can describe different hazards. A status explanation is given once, on the first notice with that status.
- 1AUSCOAST 309/26Issued 2026-10-01 03:24Z · Australian Maritime Safety Authority NAVAREA X + AUSCOAST (CC BY 4.0)
Ferris Shoal AIS aid to navigation MMSI 995036163 at 19-51.20S 150-20.20E is unreliable.
Cancelled notice · 2026-10-01 07:53Z
This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.
Earliest dated notice in this group. The archive does not establish whether it was the first report of the situation.
Original warning text · AUSCOAST 309/26
FERRIS SHOAL AIS AID TO NAVIGATION MMSI 995036163 IN POSITION 19-51.20S 150-20.20E UNRELIABLE
- 2AUSCOAST 308/26Issued 2026-10-01 03:26Z · Australian Maritime Safety Authority NAVAREA X + AUSCOAST (CC BY 4.0)
The automatic identification system aid to navigation at Marilyn Shoal, at 19-48.51S 150-22.80E, is unreliable.
Cancelled notice · 2026-10-01 07:53Z
Compared with the preceding report; no direct cancellation link is recorded: AUSCOAST 309/26.
- Reported position
- Earlier: -19.853, 150.337
This report: -19.808, 150.380 - Reported geometry
- Earlier: Previous parsed shape
This report: Different parsed shape; see this message's map
Wording in earlier report
FERRIS SHOAL AIS AID TO NAVIGATION MMSI 995036163 IN POSITION 19-51.20S 150-20.20E UNRELIABLE
Wording in this report
MARILYN SHOAL AIS AID TO NAVIGATION MMSI 995036164 IN POSITION 19-48.51S 150-22.80E UNRELIABLE
Original warning text · AUSCOAST 308/26
MARILYN SHOAL AIS AID TO NAVIGATION MMSI 995036164 IN POSITION 19-48.51S 150-22.80E UNRELIABLE
- 3AUSCOAST 311/26Issued 2026-10-01 22:53Z · Australian Maritime Safety Authority NAVAREA X + AUSCOAST (CC BY 4.0)
The automatic identification system aid to navigation at Marilyn Shoal, 19-48.51 South 150-22.80 East, is unreliable.
Cancelled notice · 2026-10-02 03:53Z
Compared with the preceding report; no direct cancellation link is recorded: AUSCOAST 308/26.
The original wording repeats AUSCOAST 308/26, allowing for whitespace. It provides no new source wording.
No difference in the parsed category, position, geometry, activity windows or source.
Original warning text · AUSCOAST 311/26
MARILYN SHOAL AIS AID TO NAVIGATION MMSI 995036164 IN POSITION 19-48.51S 150-22.80E UNRELIABLE
- 4AUSCOAST 312/26Issued 2026-10-01 22:55Z · Australian Maritime Safety Authority NAVAREA X + AUSCOAST (CC BY 4.0)
The automatic identification system aid to navigation at Ferris Shoal, at 19-51.20S 150-20.20E, is unreliable.
Cancelled notice · 2026-10-02 03:53Z
Compared with the preceding report; no direct cancellation link is recorded: AUSCOAST 311/26.
The original wording repeats AUSCOAST 309/26, allowing for whitespace. It provides no new source wording.
- Reported position
- Earlier: -19.808, 150.380
This report: -19.853, 150.337 - Reported geometry
- Earlier: Previous parsed shape
This report: Different parsed shape; see this message's map
Original warning text · AUSCOAST 312/26
FERRIS SHOAL AIS AID TO NAVIGATION MMSI 995036163 IN POSITION 19-51.20S 150-20.20E UNRELIABLE
Wrecks
Dangerous wrecks, shoals and submerged obstructions. All current wrecks & obstructions →
Not for navigation. These groups are assembled automatically from collected warnings. Mariners must use official NAVAREA broadcasts and their national MSI service.