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Criminal Occurrence
Last updated: 22 October 2017
Statuts:Enquête Officielle
Date:lundi 7 décembre 1987
Heure:16:16
Type/Sous-type:Silhouette image of generic B462 model; specific model in this crash may look slightly different
British Aerospace BAe-146-200
Compagnie:Pacific Southwest Airlines - PSA
Immatriculation: N350PS
Numéro de série: E.2027
Année de Fabrication: 1984-11-24 (3 years )
Heures de vol:8571
Moteurs: 4 Lycoming ALF502R-3
Equipage:victimes: 5 / à bord: 5
Passagers:victimes: 38 / à bord: 38
Total:victimes: 43 / à bord: 43
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:ca 19 km SW of Paso Robles, CA (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Los Angeles International Airport, CA (LAX/KLAX), Etats-Unis d'Amérique
Aéroport de destination:San Francisco International Airport, CA (SFO/KSFO), Etats-Unis d'Amérique
Numéro de vol:1771
Détails:
A British Aerospace BAe-146-200 passenger jet, registered N350PS, was destroyed when it impacted the ground near Paso Robles, CA. All five crew members and 38 passengers on board were killed. Pacific Southwest Airlines Flight 1771 hade departed Los Angeles International Airport, CA (LAX) on a domestic flight to San Francisco International Airport, CA (SFO).
A recently discharged USAir employee boarded the flight after bypassing security. He carried a borrowed 44 caliber pistol. His former supervisor was on board the flight.
At 16:13, the pilot reported to Oakland ARTCC that he had an emergency and that gunshots had been fired in the airplane. Within 25 seconds, Oakland CTR controllers observed that PSA1771 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 cvr 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.

Probable Cause:

PROBABLE CAUSE:
control interference .. intentional .. passenger
sabotage .. intentional .. passenger
emotional reaction .. passenger

CONTRIBUTING FACTORS:
security .. inadequate .. company/operator management
procedure inadequate .. company/operator management
insuff standards/requirements,operation/operator .. FAA(organization)

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year
Accident number: DCA88MA008
Download report: Summary report

Sources:
» ICAO Adrep Summary 6/89 (#14)
» NTSB


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Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Los Angeles International Airport, CA et San Francisco International Airport, CA est de 540 km (337 miles).
Accident location: Approximate; accuracy within a few kilometers.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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