What was found
(CAN) CREW REPORT: AFTER TAKEOFF EGT OVER LIMIT AND ENG NR2 FIRE WARNING ON ECAM. CREW BOUGHT POWER BACK TO IDLE FIRE WARNING EXTINGUISHED AND RETURN TO DEPARTURE WITH ENGINE AT IDLE. TOWER REPORTED A POSSIBLE BIRD STRIKE TO THE CREW. MX CARRIED OUT TROUBLESHOOTING AND NOTED BLEED AIR LEAKING FROM THE ENGINE COWLS. ONCE THE COWLS WERE OPENED THE 15TH STAGE BLEED DUCT WAS FOUND CRACKED AT A WELD LINE APPROX AT THE 6 O`CLOCK POSITION AFT FACING FWD.