7/12/2012 - Officials test a newly-completed fire suppressant system in Hangar 3 July 11 at Aviano Air Base, Italy. The new system is used to protect aircraft housed within the hangar in case of a fire. (U.S. Air Force photo/Senior Airman Katherine Windish)

7/12/2012 - Master Sgt. Tommy Behrman, 31st Maintenance Group loading standardization crew chief, goes over the process of how to start the newly-completed fire suppressant system in Hangar 3 July 11 at Aviano Air Base, Italy. In case of a fire, heat sensors activate an alarm and flashing lights, giving personnel working in the hangar 20 seconds to evacuate before the foam is released. In case heat sensors are faulty, there are manual activation systems located throughout the hangar. (U.S. Air Force photo/Senior Airman Katherine Windish)

7/12/2012 - Hangar 3 is filled with foam after officials tested a newly-completed fire suppressant system July 11 at Aviano Air Base, Italy. The system uses a thick foam, cutting off the supply of oxygen to the flames and effectively suppressing them within minutes. (U.S. Air Force photo/Senior Airman Katherine Windish)

7/12/2012 - Officials test a newly-completed fire suppressant system in Hangar 3 July 11 at Aviano Air Base, Italy. The system is used to protect aircraft house within the hangar in case of a fire. Once heat sensors are activated, the system has the ability to fill the football-field sized hangar with one-meter thick foam in four minutes or less. (U.S. Air Force photo/Senior Airman Katherine Windish)