need to be aware (beacon ON, etc.)
I don't know if this is the same at all airports, but at INV we are not allowed to go near an aircraft with the beacon on unless it is to remove chocks after startup (no pushbacks at INV), never mind letting PAX anywhere near the aircraft.
If we have an ATR in, SOP's are engine 1 shut down, 2 goes into H mode. Beacon off, chocks in place, GPU connected and engine 2 shut down. H mode not on again until turnaround complete and we are about to start.
Start up is H mode started, GPU disconnected, engine 1 started, engine 2 brake released, chocks away, aircraft taxis.
TF.