Keywords: US Navy 110624-N-UO379-161 Sailors assigned to the Black Knights of Helicopter Anti-Submarine Squadron (HS) 4 conduct maintenance on the propeller.jpg en ARABIAN SEA June 24 2011 Sailors assigned to the Black Knights of Helicopter Anti-Submarine Squadron HS 4 conduct maintenance on the propeller shaft of an SH-60F Sea Hawk helicopter aboard the aircraft carrier USS Ronald Reagan CVN 76 Ronald Reagan and Carrier Air Wing CVW 14 are deployed to the U S 5th Fleet area of responsibility conducting close-air support missions as part of Operation Enduring Freedom U S Navy photo by Mass Communication Specialist 3rd Class Alexander Tidd/Released 2011-06-24 110624-N-UO379-161 Navy http //www navy mil/view_image asp id 103277 U S Navy photo by Mass Communication Specialist 3rd Class Alexander Tidd PD-USGov-Military-Navy Maintenance of military aircraft on USS Ronald Reagan CVN-76 Helicopter Anti-Submarine Squadron 4 United States Navy SH-60F Oceanhawk |