http://www.startribune.com/nation/40426837.html
Object that fell through roof of Dallas home was part of a tree-mulching machine, police say
Associated Press
February 27, 2009
DALLAS - Police say a 6-pound chunk of metal that crashed through the roof of a Dallas home was part of a machine that was grinding up an unwanted tree nearby. Sgt. Gil Cerda says: "Mystery solved." So much for the theory it could have been a piece of debris from this month's collision of Russian and U.S. satellites.
Cerda says the metal chunk was a grinding tip of a mulching machine being used by a tree disposal service crew. No one was hurt when it went flying Tuesday. Senior Cpl. Janice Crowther said no charges will be filed against the business because it was an accident.
The satellite debris theory also came up when a fireball streaked across the Texas sky Feb. 15. That turned out to be a meteorite. It also surfaced last week when a piece of metal crashed through a New Jersey warehouse. That was another errant piece of a mulching machine.