Air Force One carrying the campaign team of the president of the United States of America...

  

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Air Force One carrying the campaign team of the president of the United States of America during the 2020 presidential elections has plane crew that always seeks to improve flight operations, efficiency, safety, and timeliness. The crew believes that one aspect of its operations that can be improved is the time it takes to service the aircraft between flights. The following are the compiled activities involved and their corresponding precedent activities: Activity Description Drive service vehicles to Airforce One Precedence A None Attach stairway Unload baggage В A A D Refuel A Passengers disembark Clean cabin E В F Load baggage Load food and beverages Stock-up water tanks Service toilets G C H E I A J I F, H New passengers embark Detach stairway K L K M Drive service vehicles from Airforce One D, G, J, L Draw the network diagram of the activities, using the precedence diagramming method (PDM). Air Force One carrying the campaign team of the president of the United States of America during the 2020 presidential elections has plane crew that always seeks to improve flight operations, efficiency, safety, and timeliness. The crew believes that one aspect of its operations that can be improved is the time it takes to service the aircraft between flights. The following are the compiled activities involved and their corresponding precedent activities: Activity Description Drive service vehicles to Airforce One Precedence A None Attach stairway Unload baggage В A A D Refuel A Passengers disembark Clean cabin E В F Load baggage Load food and beverages Stock-up water tanks Service toilets G C H E I A J I F, H New passengers embark Detach stairway K L K M Drive service vehicles from Airforce One D, G, J, L Draw the network diagram of the activities, using the precedence diagramming method (PDM).