As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3278 - DIV - TO CMH DUE TO ENG 1 + 2 INLET ANTI-ICE VALVES INDICATING CLOSED. COULD NOT CONTINUE DUE TO ICING. T/S. PERFORMED IDLE ENGINE RUN AND OPS TESTED TENG A/I SYS ON BOTH. CYCLED BOTH P/B 4 X'S. COULD NOT DUPLICATE FAULT. OPS CK OK. MEL/PLAC RMVD. TO CMH DUE TO ENG 1 + 2 INLET ANTI-ICE VALVES INDICATING CLOSED. COULD NOT CONTINUE DUE TO ICING. CORRECTIVE ACTION: LOCKED BOTH VALVES OPEN PER MEL AND CONTINUED.