As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE AT FL290, THE NR 4 ENGINE OIL FILTER ADVISORY MESSAGE CAME ON AND WOULD NOT EXTINGUISH AT IDLE THRUST. CREW ELECTED TO SHUTDOWN THE ENGINE AND RETURNED TO HNL WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED VISUAL INSPECTION OF THE OIL FILTER BYPASS SWITCH, RESEATED PINS AND RUNUP ENGINE. RUNUP WAS NORMAL AND A/C RETURNED TO SERVICE.