What was found
NR 1 ENGINE OIL FILTER MESSAGE DISPLAYED. MESSAGE REMAINED WHEN THRUST REDUCED AND AFTER ENGINE SHUTDOWN. REPLACED OIL FILTER. CHK C-D'S OK, RAN ENG, NO LEAKS NOTED. PROBABLE PART IS OIL FILTER DIFF PRESSURE SWITCH, REPLACED SWITCH.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 1 ENGINE OIL FILTER MESSAGE DISPLAYED. MESSAGE REMAINED WHEN THRUST REDUCED AND AFTER ENGINE SHUTDOWN. REPLACED OIL FILTER. CHK C-D'S OK, RAN ENG, NO LEAKS NOTED. PROBABLE PART IS OIL FILTER DIFF PRESSURE SWITCH, REPLACED SWITCH.