Witness Meyer did not and could not have seen a "flak" shootdown of the airliner at 13,800 feet at 8:31:11 only 3-4 seconds before he saw the reportedly 2000 feet in diameter Massive Fireball explosion fill the sky between 5500 and 7500 feet at approximately 8:31:47. And, of course, he indicates that he and his crewmates agreed at the time that only about 10 seconds elapsed between the time the Massive Fireball exploded and the splashdown of its flames.