As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) #4 ENGINE FULL FLOW CHIP DETECTOR (FFCD) CONTAMINATED WITH METAL CHIPS, CONDITION 3. ALL OTHER CHIP DETECTORS INSPECTED AND HEAVY METAL CONTAMINATION FOUND IN THE FFCD AND AGB CHIP DETECTORS. ANALYSIS OF METAL REVEALED AMS6440 BEARING MATERIAL. ACCESSORY GEARBOX AND OIL PUMP REPLACED.