As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NR 1 ENGINE OIL FILTER BYPASS LIGHT CAME ON IN CRUISE. THROTTLE BACK, LIGHT REMAINED ON. ALL ENGINE PARAMETERS WERE NORMAL. THE NR 1 ENGINE WAS SHUTDOWN AND THE AIRCRAFT DIVERTED. MEL 79-02 WAS COMPLIED WITH. THE OIL FILTER WAS INSPECTED AND FOUND CLEAN. THE NR 1 ENGINE OIL FILTER DIFFERENTIAL SWITCH WAS REPLACED. (X)