What was found
ANTI-ICE DUCT MESSAGE ON EICAS WITH WING ANTI-ICE SWITCH IN NORMAL AND STANDBY POSITION. COULD NOT CLOSE THE RIGHT FOURTEENTH STAGE VALVE. SWITCH IN CLOSED POSITION DID NOT GIVE CLOSED LIGHT. NO INDICATION ON ANTI-ICE PAGE. REMOVED LEFT LEADING EDGE AND FOUND LEFT PICOLO TUBE CRACKED. REPLACED TUBE AND GROUND RAN THE NR ONE AND NR TWO ENGINES. ALL ANTI-ICE SYSTEMS CHECKED NORMAL.