Garmin GNC 420W Quick Reference - Page 20
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Also for Garmin GNC 420W: Pilot's Manual Addendum (24 pages), Pilot's Manual Addendum (50 pages), Pilot's Manual Addendum (24 pages), Supplementary Manual (12 pages), Quick Reference Manual (25 pages)
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Annunciation
LPV
Follow lateral and vertical guidance to LPV
minimums. A yellow background indicates
the current VPL and/or HPL values are not
adequate for the approach and is an early
indication that downgrading will occur if
conditions do not improve.
L/VNAV
GPS approach identified in the database as
LNAV/VNAV. Fly to LNAV/VNAV minimums.
LNAV+V
Non-precision GPS approach with advanced
vertical guidance. Note that some LNAV/VNAV
approaches are not yet marked in the data-
base as such and will show up as LNAV+V. If
the chart shows the approach as LNAV/VNAV,
it can be flown to LNAV/VNAV minimums.
LNAV
Non-precision GPS approach or non-GPS ap-
proach, such as ILS or Localizer.
MAPR
Missed Approach, indicates the system is
providing missed approach integrity and CDI
full-scale deflection ±0.3 NM. This also shows
that the pilot has initiated a Missed Approach
by pressing the OBS key after crossing the
MAP.
ENR
En route, CDI full-scale deflection is 2.0 NM
or current CDI scale selection, whichever is
smaller.
TERM
Terminal, CDI full-scale deflection is 1.0 NM
or current CDI scale selection, whichever is
smaller.
DPRT
Departure, indicates the system is using non-
precision approach integrity. HAL = 0.3 and
CDI full-scale deflection is 0.3 NM.
OCN
Oceanic, CDI full-scale deflection is 2.0 NM.
LOW ALT
For LNAV+V, LNAV/VNAV, or LPV approaches,
(lower window)
the LOW ALT annunciation indicates the
aircraft's estimated height is lower than the
Final Approach Waypoint height by more than
the current VPL plus 50 meters.
18
APPROACHES
Description