Alaska Airlines jet aborted takeoff, preventing runway collision
Southwest plane crossed runway, causing potential conflict
Pilots braked immediately, preventing escalation of incident
No injuries, but Alaska jet tires overheated and flat
FAA, NTSB are now investigating the runway incident
Incident occurred at 9:15 a.m. in Nashville
Southwest Airlines involved, participating in investigation process
Passengers safely rerouted to Seattle with replacement plane
Increased concern over close runway incursions recently
FedEx, Southwest jet near-collision blamed on controller error
Delta planes collided in separate incident at Atlanta