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Last updated: 19 October 2021
Statuts:Enquête Officielle
Date:jeudi 21 octobre 1971
Heure:12:20
Type/Sous-type:Silhouette image of generic B18T model; specific model in this crash may look slightly different
ATECO Westwind II
Compagnie:Chicago & Southern Airlines
Immatriculation: N51CS
Numéro de série: BA-211
Année de Fabrication: 1956
Heures de vol:7751
Moteurs: 2 Pratt & Whitney Canada PT6A-27
Equipage:victimes: 2 / à bord: 2
Passagers:victimes: 14 / à bord: 14
Total:victimes: 16 / à bord: 16
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:3,2 km (2 milles) W of Peoria-Greater Peoria Airport, IL (PIA) (   Etats-Unis d'Amérique)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Chicago-Merrill C Meigs Field, IL (CGX/KCGX), Etats-Unis d'Amérique
Aéroport de destination:Peoria-Greater Peoria Airport, IL (PIA/KPIA), Etats-Unis d'Amérique
Numéro de vol: 804
Détails:
Chicago & Southern Airlines Flight 804 was destroyed in an accident near Peoria-Greater Peoria Airport, Illinois. All sixteen on board were killed.
The aircraft made initial contact with powerlines which cross the midpoint of the instrument final approach course, approximately 3,2 km west of runway 12 of the Greater Peoria Airport. The aircraft thereafter contacted the ground, bounced and slid into the base of a large hedgewood tree 152 feet from the point of initial wire contact. An intense fire ensued which almost completely destroyed the cockpit and cabin area of the fuselage.

The ATECO Westwind II airplane was a Beechcraft E18S that was converted with a 7 feet fuselage extension and fitted with tricycle landing gear and turboprop engines.

Probable Cause:

The Board determines that the probable cause of this accident was that the pilot knowingly descended below the Minimum Descent Altitude in an attempt to complete the approach by means of visual reference to ground objects. Because of minimal visibility and low clouds in the approach zone, the aircraft was operated at an altitude too low to provide clearance over the powerlines.

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 181 days (6 months)
Accident number: NTSB-AAR-72-15
Download report: Final report


Opérations de secours

NTSB issued 5 Safety Recommendations

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Photos

photo of ATECO-Westwind-II-N51CS
 

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 Chicago-Merrill C Meigs Field, IL et Peoria-Greater Peoria Airport, IL est de 218 km (136 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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ATECO Westwind II

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