As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE FROM JFK TO BUF RECEIVED LT ENG A/I COWL CAUTION MSG. QRH COMPLETED, EMERGENCY DECLARED. A/C LANDED SAFELY AT BUF. CLEANED CONNECTOR FOR COWL ANTI-ICE VALVE AND PRESSURE SWITCH. PERFORMED OPS CHECK OF COWL ANTI-ICE SYSTEM, OPS CHECK GOOD.