What was found
LEVEL 1 " ENG 2 A-ICE OFF" ALERT DISPLAYED AFTER TAKE-OFF CREW DEBREIF, LEVEL ONE "ENG 2 A/I OFF" ALERT REMAINED ON DURING FLIGHT, EXTINGUISHED UPON LANDING. INSPECTED OVERHEAT ELEMENTS SURROUNDING NR 2 ENGINE A/I DUCT VISUALLY, NO FAULT FOUND. FOUND EVIDENCE OF AIR LEAKAGE OF ANTIICE DUCT AT THE 3 O`CLOCK POSITION UNDERNEATH FAN COWL. DISASSEMBLED DUCT AND FOUND FLANGE OF DUCT CRACKED AROUND 2/3 OF CIRCUMFERENCE. POSTED PICS ON WEB. PART NIS ANC. R & R DUCT, NR 2 ENG A/I RT FWD IAW AMM 30-22-09-4-1. OPERATES NORMAL, NO ALERTS NOTED. FINAL CLOSED.