6-8 GPS 175/GNX 375 Pilot’s Guide 190-02207-02 Rev. BMessages6.6 Navigation AdvisoriesADVISORY CONDITION CORRECTIVE ACTIONSet Course onCDI/HSI to.The selected course onthe CDI/HSI does notmatch the currentdesired track.NOTE: This advisory isnot provided wheninterfaced to acomposite type CDI.Set the CDI/HSI selectedcourse to the current desiredtrack.Holding EFC timehas expired.It is past the specifiedExpected FurtherClearance time for theuser-defined hold.No action necessary.Consider contacting ATC asappropriate.True northapproach. VerifyNAV angles arereferenced to Truenorth (ºT).The loaded procedurereferences true northand the active leg has apublished true northreference.Verify the NAV angle is set toTrue north.Magnetic northapproach. VerifyNAV angles arereferenced toMagnetic north.The loaded approach ismagnetic, but the NAVangle reference is not.Change NAV angle setting toMagnetic.NAV angles arereferenced to Truenorth (ºT).NAV angle is set to True. No action necessary.NAV angles arereferenced to a userset value (ºU).NAV angle is set to User. No action necessary.Non-WGS84Waypoint. Seepilot’s guide.Location may bedifferent thanwhere surveyed for.The active waypointdoes not reference theWGS84 datum.No action necessary.For more information, read“Points About Non-WGS84Waypoints” in this section.
