Hi Kenny,
I dont know the answer to your query but the hex decoded correctly 88043 is HS-TKC and 880063 is HS-TRB so there is no decoding error therefore the header to the thread is not quite correct. The hex details the aircraft not its routing.
The flight ID being allocated to the wrong flight is a different matter and I dont know the answer to that one but I wil put it to Airnav.
Regards
Alan