737 MAX Flight Crew Operations Manual
Warning Systems -
System Description
15.20.8
MN-FLT-OH-201
The NO LAND 3 advisory will be annunciated when a failure has occurred above
Alert Height and the system is still capable of continuing to a safe landing. With
this advisory, LAND 2 will be the resulting autoland status annunciation displayed
following dual autopilot engagement on approach.
The NO AUTOLAND advisory is displayed any time above the Alert Height to
notify the crew a failure has occurred and the system is unable to perform an
automatic landing.
Maintenance Alert
When designated faults are detected, a MAINT light on the aft overhead panel
illuminates, and the OVERHEAD system annunciator light and MASTER
CAUTION lights illuminate.
The MAINT light is inhibited:
• in flight
• after engine start switch is placed to GRD during the first engine start
• for 30 seconds after landing.
Altitude Alerting System
Altitude alerting occurs when approaching or departing the MCP–selected
altitude. Altitude alerting is inhibited when trailing edge flaps are extended to 25
or greater, or while G/S is captured.
Alerts
Acquisition Alerting
1B401, 1B402, 1B801 - 1B824
900 feet before reaching the selected altitude, a white box shows around the
selected altitude display and the box around the current altitude becomes bold. A
momentary tone sounds. At 300 feet from selected altitude, the selected altitude
box no longer shows.
October 26, 2021
