Investigators have concluded that the failure of a pump on a fire engine was likely caused by a mechanical and/or design defect. The failure occurred on July 4 at a car accident scene where David Contreras died. Chief Dave Lugo may pursue litigation with manufacturer Kovatch Mobile Fire Apparatus. See related story, Arcadia Weekly, July 11, 2002, p. 8 and Arcadia Weekly, July 18, 2002, p. 1.