SAN CLEMENTE ISLAND, Calif. -- Master Sgt. Chad Jennings, the supervisor of the Heating, Ventilation, and Air Conditioning Section from the 176th Civil Engineer Squadron, teaches a junior member of his section about preparing pipes for soldering here March 17. The 176 CES, part of the Alaska Air National Guard's 176th Wing, deployed to San Clemente Island for two weeks in March 2011 to train and work on a variety of infrastructure projects. The pipes here were used to hook up a new air compressor. Alaska Air National Guard photo by Staff Sgt. N. Alicia Goldberger.