6-8 GPS 175/GNX 375 Pilot’s Guide 190-02207-02 Rev. 1Messages6.6 Navigation AdvisoriesADVISORY CONDITION CORRECTIVE ACTIONSet Course onCDI/HSI to DTK>.The selected course onthe CDI/HSI does notmatch the currentdesired track.Set the CDI/HSI selectedcourse to the current desiredtrack.Holding EFC timehas expired.It is past the specifiedEFC time for theuser-defined hold.No action necessary.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.
