As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YQX - FLT 141 - NR 1 ENGINE ANTI-ICE NACELLE VALVE FAILED TO OPEN. ICING CONDITIONS ANTICIPATED AT JFK. DIVERTED TO GANDER. NR 1 ENGINE NACELLE ANTI-ICE VALVE LOCKED OPEN AND DEFERRED PER MEL 30-1B AUTH NO 3-55DC-C. REMOVED AND REPLACED NR 1 ANTI-ICE VALVE. OPS CHECKS OK IAW MM 30-21-11-4. REMOVED MEL PLACARD 30-1B AUTH 3-55DC-C. CLEARED MIC SHEET. (M)