What was found
ECAM MESSAGE "AIR R WING LEAK". UNABLE TO DEFER DUE TO WEATHER. RETURNED & LANDED W/O INCIDENT. MX PERFORMED LEAK CHK & ENG RUNS. R&R RT CLAMP ON CROSS BLEED VALVE IAW MM. R&R SEAL ON RT WING LE, INBD OF BLEED DUCT. FOUND NR 2 PYLON AIR LEAK AT AFT CLAMP OF PRECOOLER. REPLACED PRECOOLER & AFT CLAMP PER MM. LEAK CHK GOOD. TEST FLT & FAILED DURING LANDING ROLL WHEN REVERSE APPLIED, ECAM MESSAGE APPEARED, REPORT SHOWED "R WING LOOP A". MX FOUND SLOW LEAK. REPLACED DUCT & TUBE JUST OTBD OF WING ROOT L/E IAW MM. OPS & LEAK CKS GOOD. FAULT CONFIRMED ON NR 2 BMC THAT REPLACED; FOUND UNIT FAILED PRE-TESTS. FAILED TEMP CHANNEL TEST. UNIT INSPECTED & ALL PARTS NECESSARY FOR REPAIR REPLACED.