As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED NR 1 ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED AT CRUISE. NR 1 ENGINE WAS SHUT DOWN IN FLIGHT AND AN EMERGENCY WAS DECLARED. AIRCRAFT DIVERTED TO MCI FROM ITS PLANNED DESTINATION OF MDW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NR 1 ENGINE OIL FILTER PER MM 79-35-0, PERFORMED BREATHER PRESSURE TEST PER MM 79-21-0 AND OPS CHECKED OK.