SAN DIEGO (AP) — The runway lights were out, a weather alert system wasn’t working and there was heavy fog at a San Diego airport when a pilot who had flown across the country made the decision to proceed with landing but came up short and crashed into a neighborhood, likely killing all six aboard the aircraft, investigators said Friday.

The investigation will continue Friday into why a Cessna 550 plunged into a Murphy Canyon neighborhood, killing all six aboard the plane.