What was found
INSPECTION TYPE: NA NO EMERGENCY WAS DECLARED OR EQUIPMENT USED. MOMENTARY WHEEL WELL FIRE ON APPROACH TO VLC. QRH CHECKLIST COMPLETED. LIGHT WENT OUT WITHIN 1 MIN, SUSPECT HOT BRAKE WHEEL WELL FIRE DETECTION SYSTEM BITE C/O, IAW FIM 26-17-TASK 815.803, NO FAULTS. BODY CROSSOVER DUCT IN WHEEL WELL INSPECTED WITH BLEED AIR. FOUND LARGE CRACK APPROXIMATELY 12 CM IN LENGTH IN THE FLANGE AREA. LEAKING LARGE AMOUNT OF AIR. BODY CROSSOVER DUCT R & R, IAW AMM 36-11-01. LEAK CHECK SATISFACTORY P/N ON 212T3138-12 OFF.