As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAGNETO DEVELOPED A LOW EXCESSIVE DROP OF 150 RPM ON GROUND. CHECKS AT 1600 RPM. FOUND RT MAG BREAKER ASSY WITH BROKEN CAM FOLLOWER SPRINGLEAF NEXT TO FACTORY ASSY SCREW. SECOND OCCURRENCE SINCE 1995. SUSPECT ELTROSYSTEMS FAA PMA LEAF SPRINGS TOO BRITTLE.