NTSB Identification: ATL83LA080.
The docket is stored on NTSB microfiche number 20536.
Accident occurred Sunday, January 02, 1983 in LAUREL, MS
Aircraft: SWEARINGEN SA-226TC, registration: N5291M
Injuries: 20 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.

AT 11,000 FT MSL DURING CRUISE A PROP SEPARATED FROM THE LEFT ENG. THE ENG WAS FEATHERED & THE PLT OBSERVED THE ENG DISPLACED INBOARD & DOWNWARD. AN EMERGENCY LANDING WAS MADE & UPON LANDING THE LEFT MAIN GEAR WAS FOUND TO BE RETRACTED.THE ACFT SLID TO A STOP COMING TO REST ON THE ADJACENT TAXIWAY. METALLURGICAL EXAMINATION REVEALED THAT THE BLADE FAILED FROM FATIGUE INITIATING AT CORROSION PITS ON THE INTERIOR OF THE FAILED BLADE BALANCE HOLE. THE PAINT IN THE BALANCE HOLE WAS DISCONTINUOUS & NON-UNIFORM. THERE WAS NO EVIDENCE OF THE HOLE HAVING BEEN SHOTPEENED. OVERHAUL INSTRUCTIONS REQUIRE SHOTPEENING OF THE BALANCE HOLE. TSO WAS CALCULATED AS 1565.8 HRS.

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..CORRODED

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

LANDING GEAR,NORMAL RETRACTION/EXTENSION ASSEMBLY..INOPERATIVE

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

GEAR EXTENSION..NOT POSSIBLE..PILOT IN COMMAND

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..FATIGUE

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

PROPELLER SYSTEM/ACCESSORIES,BLADE..FAILURE,TOTAL

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

DIRECTIONAL CONTROL..NOT POSSIBLE..PILOT IN COMMAND

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

MAINTENANCE,OVERHAUL..INADEQUATE..OTHER MAINTENANCE PERSONNEL


Contributing Factors

GROUND LOOP/SWERVE..UNCONTROLLED..PILOT IN COMMAND


Contributing Factors

PROPELLER SYSTEM/ACCESSORIES,BLADE..SEPARATION

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