Arlen: Go travelling buy zithromax no prescription needed The inspections were mandated by the Federal Aviation Administration for U.S. airlines after the tail of an Ethiopian Airlines 787 caught fire while parked at London's Heathrow airport earlier this month. U.K. investigators said the only thing in the tail section with enough power to fuel a fire like that was the emergency transmitter. That's a metal-cased, battery-operated radio the size of a loaf of bread that activates in a crash to help rescuers find a plane.