A United Airlines Boeing 777 lost a tire on takeoff Thursday as it took off from San Francisco International Airport. The plane, which was bound for Osaka, Japan, “lost a portion of landing gear tire during takeoff,” around 11:35 a.m. Thursday, airport representative Doug Yakel said, according to CNN. The tire and associated debris landed in an employee parking lot, Yakel said. No people were hurt, but several cars were damaged, he said. The plane, which had 249 people aboard, was diverted to Los Angeles after the tire fell off. United said a Boeing 777-200, the kind of plane involved in the i…