737 MAX Flight Crew Operations Manual
Flight Management, Navigation -
Flight Management System
Operation
MN-FLT-OH-201
11.31.33
The FMC also adds the following capabilities:
• IAN operations without valid PERF data (i.e. during a performance
down-mode).
• display of vertical angle with or without PERF data on both active and
inactive routes.
IAN can be used when the pilot defines a visual flight rule (VFR) approach by
entering a flight path angle (FPA) on the Arrival (ARR) page when a runway is
selected.
Adds functionality for IAN support for Pilot-Defined Final Approach by:
• allowing IAN to be used when the pilot defines a VFR approach by
selecting a RWY #### and FPA on the Airport ARRIVALS page.
• correctly depicting the crew entered angle on the VSD.
• showning the angle above the respective leg on the ACT RTE X LEGS
page.
• not changing the current operation of the FPA field. FPA field depicts a
runway with a pilot-entered FPA the same as a runway with a vertical
angle per the NDB.
The Integrated Approach Navigation (IAN) feature will allow any waypoint on a
final approach to adjust the IAN angle of descent.
The crew can enter altitude restrictions on any waypoint on a final approach.
These restrictions include:
• AT
• AT or ABOVE (will have the suffix "A" on the legs page) e.g., 12000A
• AT or BELOW (will have the suffix "B" on the legs page) e.g.,12000B
• WINDOW (will have the suffix "A" and "B", procedure only)
e.g.,12000A13000B
Altitude restrictions entered will be used to shape the VNAV path but the IAN
angle will be determined by the highest altitude (absolute value) which will result
in the IAN path clearing all restrictions on the final approach path from the Final
Approach Fix (FAF) to the Missed Approach Point (MAP).
Additionally, normal flight director steering bars are displayed that reflect G/P and
FAC guidance.
IAN provides both lateral and vertical deviation for the following approaches:
IAN provides vertical deviations for the following approaches:
• NDB
• NDB/DME
• RNV (RNAV)
• VOR
• VOR/DME
• GPS
March 1, 2021
