NTSB Identification: ATL89LA014.
The docket is stored on NTSB microfiche number 37506.
Accident occurred Wednesday, October 19, 1988 in PALMA, KY
Probable Cause Approval Date: 09/11/1989
Aircraft: ROCKWELL 114, registration: N4753W
Injuries: 2 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 A COMPLETE ENGINE FAILURE WHILE DESCENDING TO TRAFFIC PATTERN ALTITUDE. THE ATTEMPTS TO RESTART THE ENGINE FAILED. THE PILOT CRASHED IN A FIELD. THE INVESTIGATION DISCLOSED AN INTERNAL MAGNETO TIMING OF 30 AND 27 DEGREES RESPECTIVELY. THE PRESCRIBED MAGNETO SETTING IS 25 DEGREES. THE BOTTOM SPARK PLUGS WERE WET WITH FUEL AFTER AN ENGINE RUN WAS COMPLETED. THE ENGINE WAS OVERHAULED ABOUT 165 HOURS PRIOR TO THIS ACCIDENT. ABOUT SIX MONTHS AFTER THE OVERHAUL, PLATINUM TIP SPARK PLUGS WERE INSTALLED TO CORRECT A MAGNETO RPM DROP PROBLEM. THE AIRPLANE COLLIDED WITH A ROUND BALE HAY HOLDER DURING THE LANDING ATTEMPT.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:IGNITION SYSTEM,MAGNETO..OTHER
The National Transportation Safety Board determines the probable cause(s) of this accident to be:MAINTENANCE,ADJUSTMENT..IMPROPER..OTHER MAINTENANCE PERSONNEL
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