A United Airlines flight carrying 162 people popped a right rear main tire when it touched down at San Diego International Airport Sunday night, temporarily diverting all incoming flights. The San Diego Fire-Rescue Department sent three rescue rigs to the airfield about 10 p.m. on a report of a plane “coming in with equipment trouble,” a Fire-Rescue spokesperson said. FlightAware.com, a flight tracking website, indicated United Flight 540 was in…