What was found
NUMBER 2 ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED IN FLIGHT, THROTTLE RETARDED, NO HELP. CREW PERFORMED ENGINE SHUTDOWN CHECKLIST. AIRCRAFT DIVERTED AND MADE AN UNEVENTFUL LANDING AT BHM. INSPECTED, REMOVED AND REPLACED NR 2 MAIN OIL FILTER. FOUND MINOR CONTAMINATION, PERFORMED ENGINE RUN, REMOVED AND REPLACED OIL FILTER, NO CONTAMINATION NOTED. ALL ENGINE PARAMETERS NORMAL.