据中 Crew Alerting Levels Non-normal Procedures Time Operational condition that requires immediate crew awareness and immediate Critical ctIon Warning Operational or system condition that requires immediate crew awareness and definite corrective or compensatory action Caution Operational or system condition that requires immediate crew awareness and possible corrective or compensatory action Advisory Operational or system condition that requires crew awareness and possible corrective or compensatory action Alternate normal procedures Comm Alerts crew to incoming datalink communication Memo Crew reminders of the current state of certain manually selected normal conditions Source: Brian Kelly Boeing Don' t have time to discuss these levels mportant thing to know is that we rigorously define and defend these levels We apply them across all the systems The indications are consistent for all alerts at each level Thus the pilots instantly know the criticality and nature of an alert even before they know what the problem isSystem Supervisory Control Computer Interface Display Control Sensors Direct Observation Crew Alerting Levels Non-Normal Procedures Time Critical Operational condition that requires immediate crew awareness and immediate action Warning Operational or system condition that requires immediate crew awareness and definite corrective or compensatory action Caution Operational or system condition that requires immediate crew awareness and possible corrective or compensatory action Advisory Operational or system condition that requires crew awareness and possible corrective or compensatory action Alternate Normal Procedures Comm Alerts crew to incoming datalink communication Memo Crew reminders of the current state of certain manually selected normal conditions Source: Brian Kelly Boeing Don’t have time to discuss these levels. Important thing to know is that we rigorously define and defend these levels We apply them across all the systems. The indications are consistent for all alerts at each level. Thus the pilots instantly know the criticality and nature of an alert even before they know what the problem is