KODIAK, Alaska - Coast Guard Petty Officer 3rd Class John Brennan, aviation survival technican with Air Station Kodiak, preps type 1 nylon cord in the rescue swimmer shop Dec. 9, 2010, for use in the Coast Guard aircrew survival vests. The cord is tied to every survival item in the vest to serve as a lanyard in case a Coast Guardsman drops a survival item while in an emergency situation. U.S. Coast Guard photo by Petty Officer 3rd Class Charly Hengen.