Airman 1st Class William Franks, 2nd Maintenance Squadron crew chief, installs a bomb bay door on a B-52H Stratofortress during a phase inspection on Barksdale Air Force Base, La., April 26, 2013. Aircraft come in for phase inspections every 450 flight hours. The inspections also include repairs to the aircraft's systems, such as the engines, electrical and life support systems, and hydraulics. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Airmen 1st Class Kyle Gallegos, center, and Jeremy Stewart, 2nd Maintenance Squadron crew chiefs, install a fire wall panel on the engines of a B-52H Stratofortress during a phase inspection on Barksdale Air Force Base, La., April 26, 2013. The panel protects the bleed air and electrical systems incase of engine fire or hostile actions. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
A B-52H Stratofortress undergoes a phase inspection on Barksdale Air Force Base, La., April 26, 2013. Aircraft come in for phase inspections every 450 flight hours. The inspections also include repairs to the aircraft's systems, such as the engines, electrical and life support systems, and hydraulics. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Senior Airman Kristin Saenz and Airman 1st Class Kristen McConnell, 2nd Maintenance Squadron Accessories flight electrical and environmental section, conduct a missile leak check on a B-52H Stratofortress on Barksdale Air Force Base, La., April 26, 2013. The check makes sure the weapon systems of the aircraft work properly and that any fittings are properly sealed. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Alan Lawson, 2nd Maintenance Squadron, conducts 7-level inspections on a B-52H Stratofortress during a phase inspection on Barksdale Air Force Base, La., April 26, 2013. These inspections are done to ensure maintenance on the B-52 has been done correctly to prevent potentially catastrophic events from occurring. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Airman 1st Class Zachary Dutton, 2nd Maintenance Squadron Fabrication flight, installs an air lock fastener to the vertical stabilizer of a B-52H Stratofortress during a phase inspection on Barksdale Air Force Base, La., April 26, 2013. The fastener connects a panel called an elephant air plate to the fuselage of the aircraft. (U.S. Air Force photo/Airman 1st Class Andrew Moua)