N632SS
GRUMMAN G-73-T
WHILE ON AN FAA OBSERVED PROVING FLIGHT, WATER TAKE OFF, THE LEFT PROPELLER ELECTRICAL TERMINAL FAILED. THE PART THEN PENETRATED THE LEFT FORWARD PASSENGER WINDOW AND STRUCK THE FAA OBSERVER CAUSING MINOR INJURY. THE PLASTIC PART FAILED IN OVER LOAD DUE TO INADEQUATE DESIGN.
Source: NTSB Aviation Accident Database
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