As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAKEOFF, CREW OBSERVED NR 1 ENGINE OIL FILTER PRESSURE LIGHT ON CW PANEL. ALL OTHER PARAMETERS NORMAL. LIGHT WENT OFF DURING INITIAL CLIMB. AFTER INVESTIGATION, MAINTENANCE FOUND NO METAL IN MCD AND PRESSURE OIL FILTER BUT SCAVENGE OIL FILTER WAS HEAVILY CONTAMINATED WITH CARBON BUILT UP. OIL FILTER WERE REPLACED AND TEST NR 11 CARRIED OUT. FILTER RE-INSPECTED AND FOUND CLEANED. FILTER REPLACED AND AIRCRAFT RETURNED TO SERVICE.