U.S. Navy Petty Officer 1st Class Chris Precht, assigned to Mobile Diving and Salvage Unit (MDSU) 2, Company 2-4, dons a MK 20 underwater breathing apparatus to reinstall a screw propeller on coastal patrol warship USS Firebolt (PC-10) during the ship's husbandry dive in Mina Salman, Bahrain, March 7, 2011. EODESU-2 is deployed with Commander, Task Group 56.1 supporting maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility.