Rescue 75 is cruising to the search area at FL325, I would assume this indicates MARSA.
From this morning's JACC media release:
The Australian Maritime Safety Authority (AMSA) has three separate search areas planned for today about 2,000 kilometres north west of Perth, which total approximately 216,000 square kilometres.
Weather in the search area is expected to be good with a cloud base of 2,500 feet and visibility greater than 10 kilometres.
Reports overnight that the Chinese ship, Haixun 01, has detected electronic pulse signals in the Indian Ocean related to MH370 cannot be verified at this point in time.
Search and recovery continues for Malaysian flight MH370