What was found
MAGNETO WAS INSTALLED ON LEFT ENGINE 11-24-97, AND WAS REMOVED 12-31-97 DUE TO CRACKED, MISSING TOOTH. PREVIOUS MAGNETO HAD SUFFERED FAILURES OF BOTH DIST GEARS. SUSPECT TORSIONAL VIBRATION IN ENGINE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MAGNETO WAS INSTALLED ON LEFT ENGINE 11-24-97, AND WAS REMOVED 12-31-97 DUE TO CRACKED, MISSING TOOTH. PREVIOUS MAGNETO HAD SUFFERED FAILURES OF BOTH DIST GEARS. SUSPECT TORSIONAL VIBRATION IN ENGINE.