737 MAX Flight Crew Operations Manual
Flight Management, Navigation -
FMC Messages
11.60.8
MN-FLT-OH-201
ALERTING MESSAGE
CAUSE
CORRECTIVE ACTION
LNAV BANK ANGLE
LIMITED
LNAV is engaged and
the airplane is not on a
lateral offset and is not
near or in an orbit or hold
and the airplane is within
5 minutes or less from an
LNAV guided course
change, and will exceed
the airway/route
boundaries for
non-flyover turns less
than or equal to 135
degrees due to
performance limited
bank angle. This
message does not apply
to fixed radius turns.
Review the LNAV
course change. If course
change exceeds
airway/route boundary,
consider flight plan
change.
MAX ALT FLXXX
(flight level value)
Altitude intervention (as
installed) attempt to raise
cruise altitude when
MCP altitude is above
maximum altitude.
Clear the message.
MISSED CAPTURE
U14 Removes [MISSED
CAPTURE]
Proper localizer capture
maneuver was
performed, but the
AFDS did not capture.
Clear the message
MODEL/ENG DATA
INVALID
A valid performance
database is not available.
Contact maintenance
personnel.
NAV DATA OUT OF
DATE
Effectivity dates of nav
database do not agree
with date input from
clock.
Check the IDENT page
and reverse the dates for
ACTIVE NAV DATA if
required.
March 1, 2021
