NTSB Identification: ATL88LA205.
The docket is stored on NTSB microfiche number 36508.
Accident occurred Thursday, June 30, 1988 in GREENSBORO, NC
Probable Cause Approval Date: 07/10/1989
Aircraft: BEECH K35, registration: N5335R
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 FLIGHT WAS CLIMBING TO 11,000 FEET WITH AN INSTRUMENT FLIGHT CLEARANCE WHEN A PROPELLER BLADE SEPARATED FROM THE HUB. THE BLADE WAS SUBSEQUENTLY RECOVERED FROM THE YARD OF A LOCAL RESIDENT. THE FRACTURE EXAMINATION DISCLOSED THAT THE CRACKING ORIGINATED IN THE THREADED PORTION OF HUB. THE FAILURE RESULTED FROM FATIGUE CRACKING THROUGH ABOUT 60% OF THE SHANK'S DIAMETER. THE PILOT LANDED THE AIRCRAFT ON THE RUNWAY AFTER GLIDING FROM ABOUT 9,000 FEET WITHOUT FURTHER INCIDENT.

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..FATIGUE

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