What was found
JUST AFTER TAKEOFF AIRCRAFT BEGAN TO VIBRATE. RETURNED TO AIRPORT FOR UNEVENTFUL LANDING. REPLACED SHORTED CONDENSER FOR LT MAGNETO. OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
JUST AFTER TAKEOFF AIRCRAFT BEGAN TO VIBRATE. RETURNED TO AIRPORT FOR UNEVENTFUL LANDING. REPLACED SHORTED CONDENSER FOR LT MAGNETO. OPERATIONAL CHECK OK.