Its on aa.com under the electronic timetables link on the left.

LA and CX schedules don't change very much, by the way. The main changes are to the CX transatlantic flights that are changed due to daylight savings time and the winter jetstream. Otherwise, the schedules are pretty steady.

The reason the flights dont come up on 5/11/04 is because in the timetable there are "start" dates and "end" dates, and if an airline programs in an end date before 5/11, it won't come up. But obviously it doesnt mean the flight isnt there. CX753 is the same time and the same route on 5/11 as it is on 10/11.