160928-N-GP724-263 SAN DIEGO (Sept. 28, 2016) – Hospital Corpsman 1st Class Olga Carpenter instructs Logistics Specialist Seaman Matthew Entwistle on how to properly preform Cardio Pulmonary Resuscitation (CPR) during a general quarters drill aboard the aircraft carrier USS Theodore Roosevelt (CVN 71). Theodore Roosevelt is currently moored and homeported in San Diego undergoing scheduled Planned Maintenance Period. (U.S. Navy photo by Mass Communication Specialist Seaman Alexander Perlman/Released)