As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB OUT WE GOT A LEVEL 1 ENG 2 ANTI-ICE OFF. THE MEL WE WERE OPERATING UNDER HAD NR 2 ENG ANTI-ICE VLV SECURED OPEN, THIS INDICATED A POSSIBLE PNEUMATIC LEAK IN NR 2 ANTI-ICE DUCT. DIVERTED & LANDED WITHOUT INCIDENT. R & R NR 2 INLET COWL ANTI-ICE SHUTOFF VALVE IAW MM 30-22-01-4-1. FACTED ON WRI 30-20-1424.