
15
• For GPS-based approaches, receiver autonomous integrity monitor-
ing (RAIM) will monitor satellite conditions and alert you—using an
“INTEG” annunciation at the bottom left corner of the display (see
page 10)—if protection limits cannot be maintained. If this occurs,
the GPS receiver cannot be used for primary navigation guidance, a
missed approach should be initiated and select either 1) an alternate
navigation source for another approach to the same airport, or 2) an
alternate airport.
•
Within 30 nautical miles of the destination airport, CDI scaling will
transition from 5.0 nautical miles (enroute mode; or “ENR”) to 1.0 nau-
tical mile (terminal mode; or “TERM”)—or when leaving the departure
airport, from 1.0 nm to 5.0 nm. Within 2.0 nautical miles of the final
approach fix, GPS-based approaches will see a second transition from
1.0 nautical mile to 0.3 nautical mile (approach mode; or “APR”)
• A “PROC TURN OK” prompt will appear in the lower right corner of
the display to advise you when you are at a safe distance to initiate a
procedure turn. The procedure turn is displayed on the map page,
but guidance through the turn itself is not provided.
•
Alerts for proper holding pattern entry (e.g. “HOLD DIRECT”) are
displayed in the lower right corner of the display. Waypoint sequenc-
ing is automatically suspended (indicated by “SUSP” directly above
the
O
key) at the holding waypoint. Press the
O
key again to
return to automatic waypoint sequencing. For course reversals, way-
point sequencing is suspended for one trip around the holding pattern
only (after which it will return to automatic waypoint sequencing).
• The CDI will guide you through a DME arc. Just keep the needle
centered as you fly along the arc. When using an autopilot, the course
select on the CDI (or HSI) must be periodically updated with the
desired track (DTK).
• As you cross the missed
approach point, “SUSP” will
appear above the
O
key,
indicating that automatic
sequencing of waypoints is
suspended at the missed approach point, and a “from” indication will
appear on the CDI (or HSI).
Flying the Missed Approach
1.
Press the
O
key. The next way-
point in the approach is automatically
offere as the estination waypoint.
2.
Follow the misse approach proce-
ures, as publishe on your approach plate, for proper climb an hea ing instructions.
3. An alert message in the lower right han corner of the screen will recommen entry
proce ures for the hol ing pattern (e.g., HOLD DIRECT). As you fly the hol ing
pattern, a timer appears on the efault NAV page. The timer automatically resets on
the outboun si e of the hol when you are abeam the hol waypoint. The timer
again resets as you turn inboun (within approximately 30° of the inboun course).
4. When leaving the hol ing pattern to re-fly the approach (or another approach) press
the
P
key to Select Approach? or Activate Approach? as previously
escribe . (Or, use the
D
key to select another estination.)
A roaches / Missed A roach
400QR.qxd 9/12/00 11:01 AM Page 15