As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: ENGINE 1 ANT-ICE FAULT LIGHT ILLUMINATED IN THE CLIMB WHEN SELECTED TO ON. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT JFK. REMOVED AND REPLACED LEFT HAND ENGINE ANTI-ICE VALVE. PER AMM 30-21-11,OPERATIONAL CHECK NORMAL.