As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT 14TH DUCT WARNING MESSAGE IN FLIGHT. ACFT DIVERTED. MESSAGE REMAINED ON AFTER QRH PROCDEDURE. MESSAGE ALSO REMAINED ON AFTER SHUTDOWN AT GATE. EMERGENCY ACTIONS. R & R 14TH STAGE PYLON LOOP A59WK IAW AMM 36-21-00, OPS CHECKED GOOD IAW 36-21-00-710-801. NO DEFECTS NOTED.