Sharon Lawson, Alexandra Leon and Lisa Orkin Emmanuel
NBC Miami 
July 26, 2013
Authorities were investigating after a part of the Opa-locka Executive Airport was evacuated on Thursday when depleted uranium was detected inside a 55-gallon drum and a wooden pallet.
Miami-Dade Fire Rescue and the Department of Environmental Protection were on scene at the airport _ located at 14201 NW 42nd Avenue _ trying to find a contractor to correctly dispose of the Uranium 238, said Mara Burger, a DEP spokeswoman.
Someone had dismantled an old airplane and used the containers to dispose of the parts, said Burger. The plane dates to the when uranium was used on the outside of aircraft for navigational purposes, she said.