SAN DIEGO - The mine countermeasures ship USS Champion (MCM 4) arrives at Naval Base San Diego after participating in search efforts for a downed HH-60 Sea Hawk helicopter that went down May 19 off the coast of Southern California. Champion is assigned to Commander, Mine Countermeasure Squadron and is shifting homeports from Ingleside, Texas to Naval Station San Diego as part of the Defense Base Realignment and Closure.