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Cancel HYDROLANT 378/10 and this msg, survey completed

Gulf of Guinea · HYDROLANT 1064/10

issued: 2010-06-09 05:38Z
status: cancelled 2010-06-09 05:38Z (archive)
cancels: HYDROLANT 378/10
authority: NAVAREA II 220/10 090400Z JUN 10.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF GUINEA.
CANCEL HYDROLANT 378/10 AND THIS MSG, SURVEY COMPLETED.

Timeline

Seismic survey in progress until further notice by M/V ramform challenger towing 12 6000 meter long cables…cancels · 2010-03-02
Seismic survey in progress until further notice by M/V ramform challenger towing 12 6000 meter long cables…replaced · 2010-03-02

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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.