Southwest Jet Causes Two Aborted Landings in San Francisco

Two planes aborted landings at San Francisco International Airport after a Southwest Airlines jet was spotted taxiing across runways on which the other planes had been cleared to land. The FAA said the Southwest plane cleared the runways when the other planes passed directly overhead, and the decision to abort the landings was “precautionary.” The incident comes after a half-dozen close calls in recent months that are being investigated by safety officials.