RQ-4 Global Hawk maintenance

Airman 1st Class Bradley Easterbrook, 9th Aircraft Maintenance Squadron crew chief, checks the turbine blades on an Air Force RQ-4 Global Hawk intelligence, surveillance and reconnaissance aircraft Dec. 19, 2012, at Beale Air Force Base, Calif. Airmen check for foreign objects that can damage internal parts before re-assembling the aircraft during maintenance. (U.S. Air Force photo by Senior Airman Shawn Nickel/Released)

RQ-4 Global Hawk maintenance

Airman 1st Class Joshua Wieringa, 9th Aircraft Maintenance Squadron crew chief, scrapes sealant from an Air Force RQ-4 Global Hawk intelligence, surveillance and reconnaissance aircraft at Dec. 19, 2012, at Beale Air Force Base, Calif. After the sealant was removed, the forward nacelle air intake was installed. (U.S. Air Force photo by Senior Airman Shawn Nickel/Released)

Beale weathers winter storms

Airmen from the 9th Civil Engineer Squadron remove debris from a bridge off Camp Beale Highway at Beale Air Force Base, Calif., Dec. 3, 2012. The 9th CES removed more than 60 yards of debris after heavy rainstorms caused wide spread flooding on base. (U.S. Air Force photo by Airman 1st Class Robert Cummings/Released)

Beale weathers winter storm

Chief Master Sgt. Robert White, 9th Reconnaissance Wing command chief, thanks an Airman from the 9th Security Forces Squadron for his response during flooding Dec. 2, 2012 at Beale Air Force Base, Calif. Several 9th Security Forces Squadron and 9th Civil Engineer Squadron Airmen where recalled for the emergency. (U.S. Air Force photo by Senior Airman Shawn Nickel/Released)

Beale weathers winter storm

A sign on Gavin Mandery Dr. Beale Air Force Base, Calif., is surrounded by water during a storm Dec. 2, 2012. The storm caused road closures throughout base. (U.S. Air Force photo by Senior Airman Shawn Nickel/Released)

Beale weathers winter storm

Airmen from the 9th and 940th Civil Engineer Squadrons operate heavy equipment to clear the bridge on Camp Beale Hwy. after a storm flooded rocks onto the roadway and water flooded over the crossing Dec. 2, 2012 at Beale Air Force Base, Calif. Several roadways between main base and housing flooded. (U.S. Air Force photo by Senior Airman Shawn Nickel/Released)