WAYNESBURG, PA, USA
N1339J
Rockwell 112A
THE ACFT WAS LANDED GEAR-UP IN A FLD FOLLOWING A LOSS OF PWR DURING AN INITIAL TAKEOFF CLIMB. PURPOSE OF THE FLT WAS TO CHECK THE ENG AS IT HAD BEEN DISASSEMBLED BECAUSE OF METAL CONTAMINATION FROM THE CENTER MAIN BEARING. POST ACCIDENT INSPECTION OF THE ENG DISCLOSED THE #1, #2 AND #4 CYLINDER SPARK PLUG ELECTRODES WERE PEENED WITH BROKEN OUT SECTIONS AND CERAMIC POSTS. THE RESPECTIVE CYLINDER BARRELS AND PISTON HEADS WERE FOUND BADLY MARKED. THE #3 PISTON HEAD WAS SLIGHTLY MARKED AND PEENING WAS BISIBLE ON THE VALVE HEADS. INTAKE AND EXHAUST PIPES SHOWED SCRAPE MARKS WHEN REMOVED. A 1/8 INCH PIECE OF ALUMINUM PIPE WAS FOUND INSIDE THE #4 INTAKE PIPE.
Source: NTSB Aviation Accident Database
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