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Accident
Last updated: 16 October 2017
Statuts:Enquête Officielle
Date:mardi 28 mai 1963
Heure:17:46
Type/Sous-type:Silhouette image of generic CONI model; specific model in this crash may look slightly different
Lockheed L-1049G Super Constellation
Compagnie:Standard Airways
Immatriculation: N189S
Numéro de série: 4541
Année de Fabrication: 1954
Heures de vol:19803
Equipage:victimes: 0 / à bord: 6
Passagers:victimes: 0 / à bord: 64
Total:victimes: 0 / à bord: 70
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Manhattan Municipal, KS (   Etats-Unis d'Amérique)
Phase de vol: En approche (APR)
Nature:Charter National
Aéroport de départ:Daggett-Barstow-Daggett Airport, CA (DAG/KDAG), Etats-Unis d'Amérique
Aéroport de destination:Manhattan Municipal Airport, KS (MHK/KMHK), Etats-Unis d'Amérique
Numéro de vol: 338C
Détails:
The Super Constellation was approaching Manhattan runway 21 (VFR) with flaps at 100% and an airspeed of 120 knots. At a height of 170 feet agl the right wing dropped and the aircraft yawed right. Power was added to all four engines, but the plane didn't recover and struck the ground 546 feet short of the runway. The Constellation struck a 3,5 feet high ridge of earth, shearing off the nose- and right main gear legs.
It appeared that the no. 3 prop was in reverse pitch angle on impact; the threaded brake cage locking bolts were missing from the propeller and the cage was backed off 3 full threads from the normal setting. This excessive brake clearance thus obtained rendered the brake propeller control function incapable if normal operations.

Probable Cause:

PROBABLE CAUSE: "The in-flight reversal of the no. 3 propeller due to a propeller power unit malfunction, resulting from improper maintenance practices and inspection procedures."

Sources:
» CAB Accident Report File no. 1-0007
» ICAO Accident Digest No.15 - Volume I, Circular 78-AN/66 (93-100)


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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 Daggett-Barstow-Daggett Airport, CA et Manhattan Municipal Airport, KS est de 1832 km (1145 miles).

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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