737 MAX Flight Crew Operations Manual
Warning Systems -
System Description
MN-FLT-OH-201
15.20.9
Deviation Alerting
1B401, 1B402, 1B801 - 1B824
When deviating by 300 feet from the selected altitude, a momentary tone sounds
and the current altitude box turns amber and begins to flash. The amber flashing
continues until:
• altitude deviation becomes less than 300 feet
• altitude deviation becomes more than 900 feet
• a new altitude is selected.
October 26, 2021