As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING THROUGH 19000 FT, RECEIVED L 14TH DUCT WARNING MSG. COMPLIED WITH QRH. MSG PERSISTED. WING ANTI-ICE WAS OFF. SHOWED RED BETWEEN COWL ANTI-ICE VLV & MODULATING SOV IN 14TH STG. DECLARED AN EMERGENCY & RETURNED TO LEX. R & R LT 14TH STAGE PYLON SENSING LOOP A59WK IAW AMM 36-21. INSPECTED & RESEALED 14TH STAGE BLEED AIR DUCTS. OPERATIONS CHECKED GOOD.