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Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
ALTERNATE FLIGHT PLAN
The alternate flight plan page is shown in Figure 4--51. When an
alternate is entered, the alternate flight plan follows the active flight plan
and missed approach (when entered) pages. When a flight plan to an
alternate has been entered, the ALTERNATE prompt is displayed on
the ACTIVE FLT PLAN page when the aircraft is within 25 NM of the
destination. When the flight plan contains an approach, the
ALTERNATE prompt is displayed only after the missed approach has
been activated. When an ALTERNATE is selected before the
destination is reached, the FMS guides the aircraft to the original
destination and then to the alternate. ALTERNATE must not be armed
until a decision is made to divert to the alternate. Proceed to the
alternate without going to the original destination by using the DIR key.
01791.02
Figure 4- -51
ALTERNATE FPL 1/2
A28- - 1146- - 181
Operational Example
4-50
REV 3 Mar 2009
Honeywell International Inc. Do not copy without express permission of Honeywell.
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