As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE, DESTINATION ICING CONDITIONS EXISTED. NR 1 ENGINE NACELLE ANTI-ICE VALVE FAILED TO OPEN WHEN SELECTED. RELEASED FOR SERVICE IAW MEL/CDL. NR 1 ANTI-ICE INOPERATIVE ENGINE NACELLE. VALVES SECURED OPEN. REMOVED AND REPLACED NR 1 ENGINE NACELLE ANTI-ICE VALVE. OPS CHECK'S OK PER M/M REF 30-21-11-4-01.