Firefighters battle a blaze onboard a UPS cargo plane in 2006 at Philadelphia International Airport.
Firefighters battle a blaze onboard a UPS cargo plane in 2006 at Philadelphia International Airport. JOSEPH KACZMAREK AP
Firefighters battle a blaze onboard a UPS cargo plane in 2006 at Philadelphia International Airport. JOSEPH KACZMAREK AP

Tests: Batteries shipped on planes could cause explosions

December 03, 2014 07:40 AM