Date: August 14, 1968
Time: 0935
Location: Compton, California
Operator: Los Angeles Airways
Flight #: 417
Route: ?
AC Type: Sikorsky S-61L helicopter
Registration: N300Y
cn / ln: ?
Aboard: 21   (passengers:18  crew:3)
Fatalities: 21   (passengers:18  crew:3)
Ground: 0
Summary: The main rotor blade of the helicopter separated from the central hub. The aircraft spun to destruction as the tail cone sheared off. Metallurgical fault during manufacture of the main rotor blade spindle. Fatigue origin in area of substandard hardness and inadequate shot peening on main rotor blade spindle.

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