As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING COMPLIANCE OF AD78-09-07R3 MAGNETO IMPULSE COUPLING, DISCOVERED BEARING ASSY LOST ITS BALL BEARING CAGE ASSY. ONE-HALF OF CAGE ASSY WAS FOUND IN THE OIL SUMP. THIS COULD LEAD TO COMPLETE FAILURE OF ENGINE IF UNDETECTED. SUBMITTER STATED THIS IS FOURTH KNOWN DISCOVERY IN THE FLEET.