Petty Officer 1st Class Ronald Byrum, Navy diver, applies soapy water to the air supply connections on the Kirby Morgan 37 diving helmet of Navy Diver 1st Class Dean Bates to check for air leaks. Both divers are assigned to Mobile Diving and Salvage Unit 2 and are conducting mixed-gas and air diving operations aboard the Military Sealift Command fleet ocean tug USNS Apache.