The BWI Marshall Airport Fire and Rescue Department responded to a report of an unknown substance on a plane scheduled for departure.
A spokesperson with Southwest Airlines said Flight #466 en route to Oklahoma City was investigated after a Southwest crew member found two packets on the plane floor that contained a powdery substance.
They say out of caution the flight was switched to another aircraft as BWI's hazardous materials team investigated the substance and determined that there was no threat.
As Safety is always our top priority, we thank the responders at BWI for their prompt support and professionalism, and we appreciate the patience of our customers during the delay and aircraft change.
