What was found
NR 2 ENGINE ANTI ICE VALVE APPEARS TO BE STUCK IN THE OPEN POSITION. VERIFIED ENGINE NR 2 COWL VALVE LIGHT ILLUMINATED. SUSPECT OUT OF SEQUENCE SHUTDOWN. ACCOMPLISHED ENGINE ANTI ICE OPS TEST FOR NR 2 ENIGINE. IAW AMM 30-21-00 COWL VALVE LIGHT EXTINGUISHED. GROUND VERIFICATION TEST NORMAL. ON NEXT FLIGHT, PILOT REPORTED ON TAXI INTO GATE. RT COWL VALVE OPEN LIGHT CAME ON , NO ANTI-ICE WAS USED. R & R NR 2 ENGINE COWL TAI VALVE IAW AMM 30-21-11, PB 401 VALVE. OPS CHECKED GOOD.