Originally Posted by
Gardyloo
I also see AA 68 as LAX-MAD (via MIA) for some dates.
I suspect the problem is that it's 2-cabin F/Y service between SFO/LAX and MIA, to which a DONE4 would book into A with no D bucket available for the domestic sector, but J/Y service over the pond, and no A bucket on the MIA-MAD sector, only D, which causes the bad robot to pitch a fit.
AA has a lot of these tag flights with domestic sectors using the same flight numbers of a "connecting" international flight with an equipment change. They tend to change the domestic sector using the international number often. for example the domestic tag on AA64 (JFK-ZRH) changes between DFW-JFK and MIA-JFK seasonally.