As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACM UNSATISFACTORY DUE TO HIGH FRICTION FROM BEARING. LIGHT WEAR FOUND ON SHAFT AND RADIAL BEARINGS. SUSPECT CAUSE OF FAILURE: CONTAMINATION AND POSSIBLE ENVIRONMENT. SUBMITTER RECOMMENDS PERIODIC SERVICE OF WATER/PARTICLE SEPARATOR PER MANUFACTURER'S MM.