As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOOK SEVERAL ATTEMPTS TO GET NR 1 ENGINE ANTI-ICE VALVE TO OPEN. ACFT GROUNDED. R & R NR 1 ENG COWL ANTI ICE VALVE IAW MM 30-21-11-000-801 AND MM 30-21-11-400-801 THRU STEP 3H(3)(F)(2). ACCOMPLISHED STEPS 3H(3)(F) 3&4. ACCOMPLISHED STEPS 3H(3)(F) 5 THRU J(1). ACCOMPLISHED ANTI ICE VALVE TEST IAW AMM 30-21-11-400-801 AND COMPLETED STEPS 3J (2)-(6) +STEP K. OPS AND LEAK CHECKED OK.