 And it's the second time a United Boeing jet has lost a tire in the past few months. In March, a United Boeing B777-200 jet lost a tire mid-air after takeoff from San Francisco. I'm Lisa Dwyer. A shark bit a Florida teen on the leg during a lifeguard training camp. Volusia County officials say the 14-year-old's injuries were not considered to be life-threatening. More on these stories at townhall.com. I'm John Scott.