What was found
FLT#1408, YQX-JFK. (ETOPS) ENGINE 2 FIRE LOOP B FAULT ECAM INTERMITTANTLY. ( ENGINE FIRE DETECTION SYSTEMS 2) LOOP B ); REF LOGPAGES 3793278, ITEM 2 AND LOGPAGE 3793279, ITEM 1 AND ITEM 2(PERFORMED OPS TEST IAW AMM 26-12-04. TEST PASSED OK FOR SVC) FOR CORRECTIVE ACTION. MX-4 UPDATED PLACARD CLEARED.