NTSB Identification: LAX88LA070.
The docket is stored on NTSB microfiche number 35399.
Accident occurred Sunday, December 27, 1987 in GOODYEAR, AZ
Probable Cause Approval Date: 12/27/1988
Aircraft: CESSNA 172, registration: N4297F
Injuries: 3 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.

DURING A CROSS COUNTRY FLT WHILE CRUISING AT 7500 FT MSL, THE ACFT BEGAN TO VIBRATE SEVERELY. THE PLT SHUT THE ENGINE DOWN AND LANDED WITHOUT FURTHER INCIDENT. INSPECTION OF THE ACFT REVEALED THAT A SECTION OF ONE OF THE PROPELLER BLADES HAD SEPARATED. THE ACFT WAS SUBSTANTIALLY DAMAGED IN FLIGHT DURING THE VIBRATION. THE SEPARATED PORTION OF THE BLADE WAS NEVER LOCATED. THE REASON FOR THE SEPARATION WAS NOT DETERMINED.

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..SEPARATION

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