No explosives were found inside a U.S. Airways plane at Philadelphia International Airport on Friday by authorities who conducted a search after receiving a bomb threat note, Xinhua reported.
The Anchorage Alaska-bound Flight 968 was cleared for departure after a bomb squad searched inside the Boeing 757 plane and found no explosives, said special agent J.J. Klaver of the U.S. Federal Bureau of Investigation.
The plane, with 157 passengers and six crew members onboard at that time, had earlier flown from Glasgow, Scotland. It was moved from Terminal A for inspection after evacuation of all onboard according to an order by the Transportation Security Administration (TSA), airport spokeswoman Victoria Lupica told local media.
The bomb threat letter, which was received in London, did not reach the TSA until the plane arrived at the Philadelphia International Airport. The TSA then ordered the evacuation of all passengers and crew members on board the plane for a security inspection.
It was unknown who sent the letter, but Klaver said that it "was never deemed as particularly credible."
In addition to U.S. Airways, airlines which use Terminal A, one of the seven terminals at the airport, include Lufthansa, British Airways, Air Jamaica and Frontier.