Runway 17 was closed for about 30 minutes after the incident for investigation , the FAA said . A US Airways flight crew reported seeing what looked like a flare with a smoke trail . The sighting occurred while the aircraft was on landing approach in Miami . Authorities say the sighting remains a mystery .
A US Airways flight crew reported seeing what looked like a flare with a smoke trail . The sighting occurred while the aircraft was on landing approach in Miami . Authorities say the sighting remains a mystery .