This is a series of questions directed mostly at pilots flying turboprops to 747's.
Ok from what ive seen as an aircraft pulls up to the gate the parking brake is set the engines are shut down the beacon is turned off fuel and hydralics are turned off the IRU's are "shut down" (where the PFD goes the black color) and the APU and airconditioning stays on. The pilots then say goodbye and leave the aircraft for the next crew. These are just my observations as a passenger and im sure i left out a few things but ive always wondered what else goes on behind the scenes. Also what factors determine what state the flightdeck is left in eg time of stopover etc. Is it rare for a crew to come into the plane to a totally powerless aircraft and then have to power the apu and get all the systems ready?
One other thing ive always been interested in asking a pilot is, what the time line is for getting a flight ready behind the scenes.