As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER 1 ENG OIL FILTER BYPASS OCCURED ATFL270 300KIAS, DELCARED EMERGENCY LANDING. DURING INSPECTION, FOUND DEBRIS ON AGB/TGB SCAVENGE MCD. EXAMINED STARTER MAGNETIC PLUG CONTAMINATION REF AMM TASK 79-00-00-200-804-F00. NO PARTICLES FOUND.