As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN CRUISE ON FLIGHT 5367 FROM CINCINNATI TO MINNEAPOLIS / ST PAUL LT 14TH STAGE DUCT WARN ILLUMINATED. CREW FOLLOWED THEIR QRH AND SHUT DOWN THE ENGINE. AFTER DECLARING AN EMERGENCY AND DIVERTING TO MADISON THEY COMPLETED AN UNEVENTFUL LANDING.