Construction Mechanic Constructionman, Joshua Cordova conducts an hourly maintenance log on a 30 Kilowatt (30K) generator. The log covers current volts, water temperature, and fuel level during Navy Cargo Handling Battalion (NCHB 1) Field Training Exercise (FTX) at Naval Weapons Station Yorktown Cheatham Annex. NCHB 1 is the only active duty, rapid deployable unit of Navy Expeditionary Logistics Support Group (NAVELSG). NAVELSG provides expeditionary logistics capability for the Navy and joint service customers. (U.S. Navy photo by Seaman Brandon Bacon/Released)