New York — A bird strike involving an American Airlines jetliner disabled one of the plane’s two engines shortly after takeoff from New York’s LaGuardia Airport, forcing the flight to turn around and land at John F. Kennedy International Airport, authorities said Friday.No one was injured in the incident Thursday involving Flight 1722, which took off from LaGuardia at 7:43 p.m. with a destination of Charlotte, North Carolina, airline officials said.