As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ANTI-ICE DUCT WARNING 1000' AFTER T/O. RAN QRH, MSG PERSISTED FOR 15 MIN THEN WENT OUT. RETURN TO FIELD. SHUTDOWN LT ENGINE TAXIING IN, LT FUSELAGE ANTI-ICE DUCT MSG RETURNED. R & R BROKEN SENSING ELEMENT IN THE LT WHEEL WELL IAW AMM, PN 35548-3-255.