Pacific Southwest Airlines - PSA

A recently discharged USAir employee boarded PSA flight 1771 after having left a goodbye message with friends. He bypassed security and carried aboard a borrowed 44 caliber pistol. A note written by this passenger, found in the wreckage, threatened his former supervisor at USAir, who was aboard the flight. At 1613, the pilot reported to Oakland ARTCC that he had an emergency and that gunshots had been fired in the airplane. Within 25 seconds, Oakland control controllers observed that PSA 1771 had begun a rapid descent from which it did not recover. Witnesses on the ground said the airplane was intact and there was no evidence of fire before the airplane struck the ground in a steep nose-down attitude. The cover tape revealed the sounds of a scuffle and several shots which were apparently fired in or near the cockpit. The pistol was found in the wreckage with 6 expended rounds. FAA rules permitted airline employees to bypass security checkpoints. All 43 occupants were killed.

The crew was completing flight PS182 from Sacramento to San Diego with an intermediate stop in Los Angeles. While descending to San Diego-Lindbergh Field runway 27, the crew was informed about the presence of a Cessna 172M registered N7711G and operated by the Gibbs Flight Center. The single engine airplane just departed San Diego Airport for a local training mission with one student pilot and one instructor on board. At 0901:47, at an altitude of 2,600 feet and 3 NM northeast of San Diego Airport, both airplane collided. Out of control, they dove into the ground and crashed into several houses and the 805 highway located between the districts of Altadena and City Heights. Both aircraft disintegrated on impact and all 137 occupants in both aircraft were killed as well as seven people on the ground. Nine other people on the ground were seriously injured as dozen houses were destroyed.

The crew (four pilots) departed San Diego Airport on a training mission. En route, the crew simulated stall conditions when both engines failed to respond. Shortly later, both engines caught fire and the crew decided to attempt an emergency landing. The aircraft belly landed about 8,8 miles east of Borrego Springs and came to rest in flames in a desert area. While all four crew members escaped uninjured, the aircraft was destroyed.