Aviation & Mass Transit Accidents:  When accidents occur, like what happened in Austin, TX in August of 2004, when a small plane crashed into the side of a house and all passengers were killed, these incidences are immediately investigated by the proper authorities.  This must be done to protect against and assist with the avoiding of any future or potential aviation accidents.  When an accident occurs on a major commercial airline, the “black box” can be the first place to find some clues as to what caused the accident.