737 MAX Flight Crew Operations Manual
Warning Systems -
System Description
MN-FLT-OH-201
15.20.25
Bank Angle Alerts
Roll/Yaw Asymmetry Alert
When the autopilot has reached 75% of its total roll authority:
• An amber alert, ROLL/YAW ASYMMETRY appears on the Primary
Flight Display (PFD);
• the bank pointer and slip/skid indicator become outlined in amber;
• if the slip/skid indicator is deflected greater than 25% of its width, the
slip/skid indicator becomes solid amber.
Roll Authority Alert
When the autopilot has reached 100% of its total roll authority:
• The amber alert, ROLL AUTHORITY appears on the PFD;
• The aural alert, "ROLL AUTHORITY, ROLL AUTHORITY,"
annunciates;
• the bank pointer and slip/skid indicator become outlined in amber;
• if the bank angle exceeds 15 degrees, the bank pointer becomes solid
amber;
• if the slip/skid indicator is deflected greater than 25% of its width, the
slip/skid indicator becomes solid amber.
AURAL ALERT
VISUAL ALERT
DESCRIPTION
BANK ANGLE,
BANK ANGLE
None
Bank angle exceeds 10 degrees when
airplane is between 5 and 30 feet AGL
or
Variable activation when bank angle
exceeds a value between 10 degrees and
35 degrees, when airplane is between 30
feet AGL and 130 feet AGL
or
Bank angle exceeds 35 degrees when
airplane is above 130 feet AGL.
October 26, 2021
