What was found
AFTER AN UNSCHEDULED LANDING BECAUSE OF A LEFT MAGNETO PROBLEM, MAINTENANCE FOUND THE A/C DRIVE PULLEY TO SPLINE SHAFT MISSING 3 OF 4 MOUNTING BOLTS. FOUND THREADS IN PULLEY STRIPPED OUT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER AN UNSCHEDULED LANDING BECAUSE OF A LEFT MAGNETO PROBLEM, MAINTENANCE FOUND THE A/C DRIVE PULLEY TO SPLINE SHAFT MISSING 3 OF 4 MOUNTING BOLTS. FOUND THREADS IN PULLEY STRIPPED OUT.