As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE MOUNTING FLANGE ON THE MAGNETO BROKE, CAUSING THE MAGNETO TO BACK OUT OF THE ACCESSORY HOUSING OF THE ENGINE, SUBSEQUENTLY CAUSING A LOSS OF ENGINE POWER AND A FORCED LANDING. PERFORMING DYE-PENETRATE INSPECTIONS ON A 100HR BASES ON ALL DUEL MAGNETO APPLICATIONS.