COAST GUARD ISLAND, ALAMEDA, Calif. -- Petty Officer 2nd Class Daniel Strange and Petty Officer 3rd Class Greg Farney, both aviation survival technicians stationed at Coast Guard Air Station San Francisco, give a final briefing to Lt. Mike Norris before conducting shallow water egress training here Dec. 2, 2008. The egress training is designed to give aircrew members the necessary skills needed to escape the aircraft in the event of a crash into the water.