VIDEO: A thermal chain-reaction caused by a faulty battery system triggered the explosion that injured eight firefighters in Surprise last year, according to a report released Monday by the Arizona Public Service Company.
Crews responded to 911 calls of unusual smoke coming from an APS facility near Deer Valley Road and Grand Avenue on April 9, 2019. Eight firefighters were injured in the explosion near Deer Valley Road and Grand Avenue, according to a spokesperson for the Surprise Fire Department.
Investigators said that an explosion erupted as soon as Peoria Fire-Medical Department's hazmat team opened the door of the facility to investigate.
The aftermath of the explosion was captured on body camera as officers rushed to help the firefighters, four of whom were hospitalized.