As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT ENGINE OIL FILTER MESSAGE DISPLAYED. MESSAGE REMAINED WHEN THRUST REDUCED. AFTER ENGINE SHUTDOWN, MESSAGE DISAPPEARED. NOTE: LT ENGINE SHUTDOWN, (0) OIL PRESSURE LAST 5 MINUTES OF FLT. REMOVED AND REPLACED THE NR 1 ENGINE MAIN OIL FILTER AND THE OIL FILTER DIFFERENTIAL PRESSURE SWITCH IAW MM. LEAK AND OPS CHECKED GOOD.