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 CONTAMINATION WAS FOUND ON FFCD AND ACCESSORY GEARBOX (AGB) CHIP DETECTOR. ANALYSIS OF METAL SHOWED METAL TO BE AMS6440 BEARING MATERIAL. AGB AND OIL PUMP REPLACED.