As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE OIL FILTER SENSOR L THE PRESSURE SWITCH FOR DETECTING IMPENDING OIL FILTER BYPASS ON THE LEFT ENGINE HAS FAILED. STATUS MSG-7960861 ACTIVE ERROR MODE MSG-7960861 ACTIVE ER MODE. ACPD LEFT ENG OIL TANK MASTER CHIP DETECTOR FOR CONTAMINATION. CHIP DETECTOR CONDITION CHECK OK. RECOMMEND REPLACE OIL FILTER DIFFERENTIAL PRESSURE SWITCH. REPLACED OIL FILTER DIFF PRESSURE SWITCH. ACCOMPLISHED OIL FILTER PRESSURE SWITCH CHECK FOR NR 1 ENG DURING IDLE. OP CHECKS NORMAL.