It's quite obvious with the giant spool sitting on the deck. The mechanism used to deploy the SURTASS is also dramatically different from the two crane thingies at the stern of the 927s, the purpose of which I still have no idea. Though at least the portside crane looks like it's attached to a yellow boat, or maybe the submersible end of a VDS, which means the starboard crane may be deploying a TAS line. This setup would of course be a rather disappointing arrangement for a 927, since even a 056A comes equipped with such an ASW combo.
