As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION OF NEW PARTS FOUND 6 EACH INTAKE VALVE GUIDES DEFECTIVE OUT OF 6 EACH NEW TCM CYLINDERS. ALL GUIDES ARE OUT OF NEW LIMITS AND TAPERED FROM TOP TO BOTTOM. TOTAL OF 18 INTAKE GUIDES, PN 643766, REPORTED OUT OF LIMITS BY SUBMITTER.