Accident
Last updated: 3 September 2014
Statuts:Enquête Officielle
Date:mardi 9 septembre 1969
Heure:15:29
Type/Sous-type:Silhouette image of generic DC93 model; specific model in this crash may look slightly different
McDonnell Douglas DC-9-31
Compagnie:Allegheny Airlines
Immatriculation: N988VJ
Numéro de série: 47211/357
Année de Fabrication: 1968
Heures de vol:3170
Moteurs: 2 Pratt & Whitney JT8D-7
Equipage:victimes: 4 / à bord: 4
Passagers:victimes: 78 / à bord: 78
Total:victimes: 82 / à bord: 82
Victime de la collision:victimes: 1
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Shelbyville, IN (   Etats-Unis d'Amérique) show on map
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Cincinnati/Northern Kentucky Airport, KY (CVG/KCVG), Etats-Unis d'Amérique
Aéroport de destination:Indianapolis-Weir Cook Municipal Airport, IN (IND/KIND), Etats-Unis d'Amérique
Numéro de vol: 853
Détails:
Flight 853 was descending from 6000 feet to 2500 feet when, at about 3550 feet, it collided with a Piper PA-28 aircraft (N7374J). The Piper was flown by a student pilot on a solo cross-country VFR flight. Visibility was 15 miles with intervening clouds.

PROBABLE CAUSE: "The deficiencies in the collision avoidance capability of the Air Traffic Control (ATC) system of the Federal Aviation Administration in a terminal area wherein there was mixed Instrument Flight Rules (IFR) and Visual Flight Rules (VFR) traffic. The deficiencies included the inadequacy of the see-and-avoid concept under the circumstances of this case; the technical limitations of radar in detecting all aircraft; and the absence of Federal Aviation Regulations which would provide a system of adequate separation of mixed VFR and IFR traffic in terminal areas."

Sources:
» NTSB-AAR-70-15

Official accident investigation report
investigating agency: National Transport Safety Bureau (NTSB) - USA
report status: Final
report number: NTSB/AAR-70-15
report released:15-JUL-1970
duration of investigation:309 days (10.3 months)
download report: Allegheny Airlines, Inc., DC-9, N988US, and a Forth Corporation Piper PA-28, N7374J, near Fairland, Indiana, September 9, 1969. (NTSB/AAR-70-15)

Opérations de secours

NTSB issued 1 Safety Recommendation

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Photos

photo of McDonnell Douglas DC-9-31 N988VJ
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Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Cincinnati/Northern Kentucky Airport, KY et Indianapolis-Weir Cook Municipal Airport, IN est de 158 km (99 miles).

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DC-9-30

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