U.S. Navy PETTY Officer 3rd Class Joanna Manis, Aviation Boatswain's Mate Equipment 3rd Class (right) stands as a safety observer during a Jet Blast Deflector emergency lowering drill aboard the U.S. Navy Aircraft Carrier USS NIMITZ (CVN 68). The USS NIMITZ (CVN 68) is currently underway off the coast of Calif., conducting sea trials after successfully completing a six-month Planned Incremental Availability period. Aug. 29, 2006. (U.S. Navy photo by Mass Communication SPECIALIST 3rd Class Roland Franklin) (Released)