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Last updated: 30 March 2020
Status:Schlussbericht
Datum:Donnerstag 12 September 1946
Zeit:13:42
Flugzeugtyp:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas C-54A-10-DC (DC-4)
Fluggesellschaft:Pennsylvania-Central Airlines
Kennzeichen: NX91068
Werknummer: 10342
Baujahr: 1944
Betriebsstunden:3598
Triebwerk: 4 Pratt & Whitney R-2000-7
Besatzung:Todesopfer: 0 / Insassen: 4
Fluggäste:Todesopfer: 0 / Insassen: 0
Gesamt:Todesopfer: 0 / Insassen: 4
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:Washington-National Airport, DC (DCA) (   USA)
Flugphase: Annäherung (APR)
Betriebsart:Ausbildungsflug
Flug von:Washington-National Airport, DC (DCA/KDCA), USA
Flug nach:Washington-National Airport, DC (DCA/KDCA), USA
Unfallbericht:
A no. 4 engine fire forced the crew to land immediately at Washington-National. The fire was fed by fuel and oil escaping from melted and burned fuel and oil line connections. The engine separated from the wing just prior to touchdown.

Probable Cause:

PROBABLE CAUSE: "The Board determines that the probable cause of this accident was the failure in the No. 4 engine of the exhaust valve of the No. 2 cylinder and the exhaust connection of the No. 1 cylinder which resulted in fire in flight. A contributing factor was the inadequacy of the seal between the firewall and nacelle skin and between individual cowl panels which permitted the fire eventually to reach Zone 3 and to become uncontrollable."

Informationsquelle:
» CAB File No. 3894-46


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This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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