>>4106377 pb
I’m fascinated by this airport search.
Dunno what parameters are used to do this type of search or how far advanced the search is.
I have had some thoughts that may be, or probably are, pedestrian but throwing them out there for the sake of it.
Attached is the flight record for Air China B1976 for the previous week. Maybethe time/date stamp on the pic could be used to locate its position or if only the date then at least the whereabouts of the plane on that date could narrow the airports down.
Alternatively, google maps might help with the terrain.