As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUE TO CONTAMINATION IN THE REAR SUMP SCAVENGE MCD INSPECT SCAVENGE OIL FILTER ON THE NR 2 ENGINE. ACFT GROUNDED. INSPECTED THE NR 2 ENGINE SCAVENGE OIL FILTER AND SENT IT IN WITH THE CHIP DETECTOR PARTICLES. IAW AMM 79-21-06. INSTALLED NEW FILTER ELEMENT IAW AMM 79-21-06-400-801-F00 UP TO STEP 3.H.(3). REQUIRES STEP 3.I. COMPLETED STEP 3.I. LEAK CHECKED GOOD.