Push notification when aircraft approaches a location on return

Problem

Ground staff at tour operations have no way to be automatically alerted when an aircraft is approaching on its return leg. They must watch the map or rely on someone at a desk to call them.

Desired outcome

Ground crew receive a push notification on their mobile when an aircraft passes a defined location on the return flight, so they can prepare for arrival.

Proposed change

Trigger a mobile push notification when an aircraft crosses a geofence or waypoint on its return route, delivered to designated users.