What was found
DURING CRUISE, AN ECAM MESSAGE NR 2 ENGINE FIRE LOOP A FAULT DISPLAYED. TROUBLESHOT THE NR 2 FIRE LOOP A IAW TSM 26-12-00-810-937A. BITE TESTED OK. FOUND PYLON DETECTOR, 2WD2, OUT OF LIMITS. REMOVED & REPLACED THE PYLON DETECTOR IAW AMM 26-12-16. OPS CHECKED GOOD. FDU-2 BITE TESTED OK.