"Eyewitness:'I didn't hear an explosion at first when I saw the metal fall. I heard an explosion about a minute and a half later,' she said."
"The engine came away before the explosion"
How far away was the "witness"?
Speed of sound vs speed of light issue.....
light travels at ca. 186,000 miles per second - sound travels at ca. 1000 feet per second. drjoe