NTSB Identification: NYC95LA231.
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Accident occurred Friday, September 29, 1995 in STATEN ISLAND, NY
Probable Cause Approval Date: 05/09/1996
Aircraft: Waco UPF-7, registration: N167K
Injuries: 4 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The pilot reported that he was returning from a local sightseeing flight. While cruising at about 800 feet mean sea level, a section of a propeller blade separated. This was followed by a severe vibration, and the engine separate from the aircraft. The pilot stated, 'I saw after landing that the engine was hanging down between the landing gear struts...held on by the throttle linkage, fuel line and heavy duty starter wire.' The pilot performed a forced landing in a parking lot. Examination of the fractured propeller blade revealed a fatigue origin area at the point of separation. Additionally, there was an area of mechanical damage on the flat face of the blade where the fatigue cracking initiated.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

Failure of the propeller blade due to fatigue, which resulted in severe vibration, subsequent separation of the engine, and a forced landing.

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