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Some electronic chart display and information systems (ecdis) may exhibit operating anomalies

Display Anomalies In Some Ecdis · NAVAREA IV 516/12

issued: 2012-09-08 03:37Z
status: cancelled 2012-11-03 10:15Z (archive)
authority: ECDIS 08 SEP 12.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

DISPLAY ANOMALIES IN SOME ECDIS.
SOME ELECTRONIC CHART DISPLAY AND INFORMATION SYSTEMS (ECDIS)
MAY EXHIBIT OPERATING ANOMALIES. THE INTERNATIONAL MARITIME
ORGANIZATION'S CIRCULAR SN.1/CIRC. 312
(HTTP:WWW.IMO.ORG/ OURWORK/ CIRCULARS/PAGES/IMODOCS.ASPX
(REGISTRATION REQUIRED) LISTS IDENTIFIED ANOMALIES, THEIR 
CHARACTERISTICS AND REMEDIAL ADVICE. MARINERS ARE REMINDED 
THAT THEY SHOULD ACCESS THE INTERNATIONAL HYDROGRAPHIC 
ORGANIZATION (IHO) DATA PRESENTATION AND PERFORMANCE CHECK 
(DPPC) DATASET. (HTTP://WWW.IHO.INT/SRV1/INDEX.PHP?OPTION=
COM_CONTENT&VIEW=ARTICLE&ID=585:NEWS&CATID=166:1NEWS-
LINKS&ITEMID=828) AND ENSURE THAT ALL INSTALLED ECDIS
UNITS ARE CHECKED.

Timeline

NAVAREA IV warnings in force 030900Z nov 12cancelled by · 2012-11-03

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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.