[jimworcs]

The big problem you have is that there was an element of weather in the reasons given for the delay. I suspect this was bogus and the real reasons were equipment and the illegal alien story, which is so unusual as to be a notable reason. Makes a mockery of the enhanced security clearance if true though.
I would file a complaint with the DOT.. if the reason were equipment failure and employee problems, these are entirely within their control and they ought to have provided alternatives including flying on another carrier or re-routing to get her there. Incidently, was the AA leg booked separately from the international portion of the trip? I think their conduct is even worse if it was connected.

[Stevebyer]

Jim, All flights were booked together thru a travel agent (who is providing no help). The flight from Boston to LA was a Qantas run by American. The two remaining connections (one to Sidney, and then on to Brisbane) were Qantas.

[jimworcs]

I think you should definitely complain through the DOT. Qantas and AA are both OneWorld and may have been trying to keep you in their network, but this is simply not good enough. They ought to have routed her via other carriers if they could not find a reasonable alternative. She has been treated very badly and I think the DOT is the way to go.

[Stevebyer]

Jim, Thanks for the suggestion - I will contact the DOT.