Shindaiwa Corp., of Tualatin, Ore. voluntarily recalled about 23,000 Shindaiwa Backpack Blowers because the blower's impeller (fan) can separate from the base and break apart, causing plastic pieces to be blown out of the machine, and pose a laceration and impact hazard to consumers. The flying pieces also can cause property damage and injury to bystanders. These backpack blowers were previously recalled due to a fire hazard. At the time of the recall, the company had received notice of 13 incidents involving broken impellers. One incident involved a minor head injury and minor property damage to a nearby automobile. This recall involved Shindaiwa Models EB8510 and EB8510RT. All models up to serial # 7014728 are included. The backpack blowers weigh approximately 24 pounds and include Serial Numbers through February 2007 production (S/N 702XXXX) which are located on the side label. These machines are black and blue with a red and black label that reads, "EB8510, Shindaiwa." These products were sold by Shindaiwa dealers nationwide from September 2005 through January 2007 for about $600.