Operations managers use many techniques to solve problems. Some of these techniques are graphical and can be solved using software tools and programs. You will use Excel and PowerPoint to solve real- life problems encountered by operations managers. How many times have you waited, not so patiently in the departure area, for your aircraft to be serviced before you board? Airport operations managers strive to achieve the shortest "turn around time" possible through a carefully choreographed process. Aircraft only make money when they are in the air! This chart provides a generalized ow for the turnaround of an aircraft. Your task is to produce a Gantt chart, draw an activity on node (AON) network diagram, and determine the critical path. Activity Description Immediate Predecessors Time (Min) A Aircraft stops at the gate - :00 B Jet bridge connected A :05 C Passengers deplane B :10 D Baggage ofoaded A :15 E Refueling/water servicing D :25 F Gallery servicing C :20 G Cabin cleaning C :20 H Baggage loaded D :15 | Passengers boarded E, F, G :15 J Aircraft ready for departure H, |