IO540
You're quite right, you can specify co-ordinates or bearing and distance from a navaid but not an aerodrome indicator. In a lot of cases there is a way round it, SAM would do for EGHI and COM for EGHA for instance because they are located on the fields.
FD
How about the NavBox interface?
It can already do:-
A map of your route
Weight and Balance
Flight Plan
Calculate fuel burn
Calculate wind and produce your PLOG
Upload the route to your GPS
and produce a list of en-route frequencies along your track.
Wouldn't it be nice if it also looked up the NOTAM along your track?
NOTAM - Notices to Airmen.
Except that we don't get NOTAM
Oh no, we who have trained, been examined and licensed are clearly far too irresponsible to be given NOTAM. Instead we get a Pre-Flight Information Bulletin (PIB) that is not in any ICAO defined format and lacks the coding required to enable a software program to reliably select those NOTAM which might affect our intended flight.
If you are a commercial briefing service, an airline, and ATC unit or anyone else with an AFTN feed you get NOTAM.
But not if you are a pilot!
Mike