Driving case: B757/767 2 or 3 person crew Prior to 767 somewhat arbitrary break at 100 seats DC-9 (2 person crew-pilot, co-pilot u B-727 3 person crew-pilot, co-pilot, flight engineer) B-757/767 Designed for 2 person Crew u Use of automation and simplified systems so minimize systems management u Use of advanced Cockpit to Increase Sa and make primary flight tasks easier Safety concerns raised by air Line Pilots Association (ALPA) 口Work|oad Off Nominal and Emergency Conditions (eg manual pressurization) O Job protection issues Workload became political and requlatory issueInterface System Supervisory Control Computer Display Control Sensors Direct Observation Driving Case: B757/767 2 or 3 person crew ? ü Prior to 767 somewhat arbitrary break at 100 seats o DC-9 (2 person crew - pilot, co-pilot) o B-727 (3 person crew - pilot, co-pilot, flight engineer) ü B-757/767 Designed for 2 person Crew o Use of automation and simplified systems so minimize systems management o Use of Advanced Cockpit to Increase SA and make primary flight tasks easier ü Safety concerns raised by Air Line Pilots Association (ALPA) o Workload o Off Nominal and Emergency Conditions (eg manual pressurization) o Job Protection issues ü Workload became political and regulatory issue