Where did you find this information? I would love to have a source to find all the future AR fleet and schedule news. Their website doesn't really say anything and the employee website (www.salvemosaerolineas.com.ar) has been short on the info recently.
Other than that it is great news but why would they want to use a A342 when MIA has a lot of passangers and their 747's are usually full? Also do you have any other info on the airline, I would love to hear more about it.
It's in the OAG. I don't know why they are going to be sending an A340-200 over a 747-200, but MIA will get 747s again in the summer, so it is just temporary. Probably because they are going from three 742s a week to a daily 342, so they can re-gain a customer base, if you get what I am saying.