"X" marks the runway where planes cannot land at Memphis International after the landing gear collapsed upon touchdown on a FedEx MD-10, inbound from Seattle.
"It was breathtaking and I'm just glad everybody got out alive," said Lois Edwards, who witnessed the fiery landing.
The accident caused a traffic jam when emergency crews stopped cars around Airways Boulevard and Shelby Drive late Friday morning
No one was injured, but now it's up to the National Transportation Safety Board (NTSB) and the Federal Aviation Administration (FAA) to figure out why this happened. They have determined what sent a plume of black smoke into the air.
"It was actually a grass fire started by sparks from the airplane, rather than a fire on board the airplane itself," said Les Door of the FAA.
The NTSB and FAA sent in several agents from D.C. and Atlanta to investigate. FAA reps will listen to the data and flight recorders to get a clearer picture of what happened. They'll also pull air traffic control tapes.