U.S. Navy sailors from Mobile Diving Salvage Unit 1, Company 15, assist Marine Heavy Helicopter Squadron (HMH)- 363 with the removal of a downed CH-53 Sea Stallion from Kaneohe Bay, Hawaii, April 8, 2011. The helicopter was cut down for easier removal. The helicopter had made an emergency landing in Kaneohe Bay on March 29, 2011; the incident killed one Marine and injured three others.