MIAMI, FL, USA
N55CA
DOUGLAS DC-6B
CREW STATED THAT ON TAKEOFF ROLL THE NUMBER FOUR ENGINE FAILED AND AN ABORTED TAKEOFF WAS INTIATED. DURING THE DECELLERATION AFTER THE THROTTLES WERE CLOSED THE NUMBER FOUR ENGINE SEIZED AND THE NUMBER FOUR PROPELLER SEPARATED WHEN THE PROPELLER SHAFT FAILED. INSPECTION OF THE PROPELLER SHAFT REVEALED IT SHEARED OFF EIGHT INCHES FROM THE TIP,AND EXHIBITED NO EVIDENCE OF A PRIOR CRACK. INSPECTION OF THE ENGINE OIL SCREENS REVEALED THE PRECENTS OF METAL CONTAMINATION. THE OPERATOR HAD NO PLANS TO DISASSEMBLE THE ENGINE. BUT PLANNED TO EXCHANGE IT FOR AN OVERHAULED ENGINE. THE EXPCT CAUSE OF THE ENGINES INTERNAL FAILURE WAS NOT DETERMINED.
Source: NTSB Aviation Accident Database
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