Wait, I’m confused.
You say you only display what the “original processed FP” is, but then you do show a corrected route prior to departure?
Help me understand the processing logic, am I anywhere close on this?
Airline flight ABC123 files FP thru NADIN (with bad departure route)
NADIN distributes FP to appropriate HOST
HOST instantaneously inserts yet-to-be-issued PDR
HOST distributes FP to ETMS as if PDR is/will be issued
FA pulls and posts ETMS FP data
As such, any FP amendments after ETMS pull aren’t displayed, and certainly not any airborne route changes (like when the ARTCC shortcuts someone). Of course, I understand the route line is live, I’m just talking strict text flight plan route data.
I hope I’m not treading on anything proprietary. As a former center controller, I’ve just been curious how FA sources the data and how “accurate” the flight plan is to the actual clearance at the time of departure.