PSA Flight 182

Pacific Southwest Airlines Flight 182 was a scheduled flight of Pacific Southwest Airlines from Sacramento to San Diego with a stopover at Los Angeles. On September 25, 1978, the Boeing 727-214 serving the flight, registration of N533PS, collided with a private Cessna 172 light aircraft, registration N7711G, over San Diego, California. It was Pacific Southwest Airlines' first fatal accident, and it remains the deadliest air disaster in California history. At the time, it was the deadliest air crash to occur in the United States, and remained so until American Airlines Flight 191 crashed in May 1979.

Both aircraft crashed into North Park, a San Diego neighborhood. PSA 182 struck just north of the intersection of Dwight and Nile streets, killing all 135 people aboard the aircraft and seven people on the ground in houses, including two children.

Source: Wikipedia