737 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Preflight
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 11.40.5
1 IDENT
Push – displays the IDENT page, the first page in the automatic preflight
sequence.
2 Position Initialization (POS)
• Push – displays the POS INIT page used for IRS initialization.
• POS INIT page is also used to enter/update magnetic heading for an IRS
which is in the ATT mode.
3 Performance Initialization (PERF)
Push – displays the PERF INIT page for initialization of data required for VNAV
operations and performance predictions.
4 Takeoff Reference (TAKEOFF)
Push – displays the TAKEOFF REF page to enter takeoff reference information
and V speeds.
5 APPROACH
Push – displays the APPROACH REF page for entry of the approach VREF
speed.
6 Navigation Data (NAV DATA)
Push – displays the REF NAV DATA page to display information about
waypoints, navaids, airports, and runways. On the ground, displays the SUPP
NAV DATA page if SUPP is entered in the scratchpad prior to selection.
7 Maintenance (MAINT) or Navigation Status (NAV STATUS)
• MAINT – On ground only.
Push – displays maintenance pages for maintenance use.
• NAV STATUS – Replaces MAINT prompt when in air.
Push – displays NAV STATUS page which shows status of navigation
aids being tuned by the FMC. Replaces MAINT prompt when in air.
8 OFFSET
Push – displays the LATERAL OFFSET page for initiating a lateral offset.
9 Alternate Destinations (ALTN DEST)
Push – displays the ALTERNATE DESTS page used for alternate airport planning
and diversions.
September 28, 2006