737 MAX Flight Crew Operations Manual
Warning Systems -
System Description
15.20.24
MN-FLT-OH-201
Bank Angle Alert
The GPWS provides the aural alert BANK ANGLE, BANK ANGLE when there
is excessive roll of the airplane. Once sounded, the alert is silent for that bank
angle until the system is reset by decreasing the bank angle to 30 degrees or less.
The alert is based on radio altitude and bank angle:
• from 5 feet to 30 feet AGL, the alert sounds when the bank angle
exceeds 10 degrees
• from 30 feet to 130 feet AGL, when the alert sounds varies linearly from
a bank angle of 10 degrees at 30 feet AGL, to a bank angle of 35 degrees
at 130 feet AGL
• above 130 feet AGL, the alert sounds when the bank angle exceeds 35,
40 or 45 degrees.
October 26, 2021