Aus 9/11 Wiki
Staff Sgt. Chris Braman: "The lawn was littered with twisted pieces of aluminum." He saw one chunk painted with the letter "A", another with a "C". It didn't occur to Braman what the letters signified until a man in the crowd stooped to pick up one of the smaller metal shards. He examined it for a moment, then announced: "This was a jet."
Not a witness to the flight of the aircraft. The "debris" has never been officially identified as being part of flight AA77.
Source List: Bart