HELICOPTER MAINTENANCE U.S. Navy Lt. Andy Klingensmith, right, and Petty Officer 2nd Class Louis Bouchard perform maintenance on an MH-60S Sea Hawk helicopter aboard the aircraft carrier USS George H.W. Bush in the Atlantic Ocean, Feb. 26, 2014. Klingensmith and Bouchard are assigned to the Tridents of Helicopter Sea Combat Squadron 9. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 468201-Y-CGN68-693.jpg Photo Gallery