787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
Flight Management System
Operation
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 11.31.29
IAN supports the following approach types:
Depending on the type of approach flown, the FMC can provide:
• glidepath (G/P) deviations from the defined VNAV path
• final approach course (FAC) deviations from the defined LNAV path
• a source for deviation scales
• distance to the missed approach waypoint
When an approach is entered into the active route, the FMC generates the
approach path information based on the details contained in the navigation
database. IAN uses flight path guidance from the FMC, the navigation radios, or
a combination of both.
RNP and vertical RNP are used to scale the displayed FAC and G/P deviations.
RNP values can be accessed from POS REF 2/4 and RNP PROGRESS 4/4.
For a VFR approach using IAN procedures, the FPA can be accessed from the
ARRIVALS page once a VFR approach is selected.
For additional information on IAN refer to:
• Integrated Approach Navigation
, Ch. 4, Sec. 20
• PFD Integrated Approach Navigation (IAN) Indications
, Ch. 10, Sec. 10
• Integrated Approach Navigation (IAN) Indications
, Ch. 10, Sec. 30
• Position Reference Page 2/4
, Ch. 11, Sec. 40
• RNP Progress Page 4
, Ch. 11, Sec. 42
• Arrivals Page – VFR Approaches
, Ch. 11, Sec. 43
• Approach Procedure
, Ch. NP, Sec. 21
Missed Approach
A missed approach is accomplished by selection of either TOGA switch. The
following features are available:
• VNAV can only be activated when the airplane climbs above 400 feet
radio altitude
• if an LNAV path is available, LNAV automatically arms and engages:
• above 50 feet radio altitude when autopilot is not engaged, or
• above 200 feet radio altitude when autopilot is engaged
Note: Route discontinuities after the missed approach will prevent
the TO/GA to LNAV function from engaging.
• B/CRS
• GPS
• IGS (G/S selected OFF)
•
ILS (G/S selected OFF)
•
LDA
• LOC (G/S selected OFF)
• NDB
• RNAV
• SDF (G/S selected OFF)
• VFR
• VOR
August 14, 2009
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