San Francisco Fire Department officials are investigating why worn tires kept a special strike team’s fire truck from rolling to fight the Wine Country blazes when an emergency call for help came in. Fire Chief Joanne Hayes-White said the engine captain at Station 9 on Jerrold Street in the Bayview cited the truck’s tread-poor tires as the reason for not joining four other San Francisco strike teams rushing to Santa Rosa to battle the deadly Tubbs Fire early Oct. 9. A truck from Berkeley went in its place. The next day, inspectors examined the truck’s tires and found some wear and tear. “Three of them were replaced as a precaution,” Hayes-White said.