What was found
FLT#31, BOS-AMS. (ETOPS) 'ENG 2 FIRE LOOP B FAULT POPPED UP WHILE SITTING AT THE GATE ( ENGINE FIRE DETECTION SYSTEMS 2) LOOP B ); REF L/P 4067945 ITEM #2 (PERFORMED VISUAL INSPECTION OF THE ENGINE FIRE DETECTION SYSTEM IAW AMM 26-12-00-200-802, FOUND DEEP GOUGES IN DET-FIRE, CORE AGB LOOP B (4002W02), R & R CORE AGB LOOP B IAW AMM 26-12-17. REMOVED AND REPLACED FIRE HARNESS ASSY IAW AMM 26-12-62. PER MCC REQUEST) & #2 (PERFORMED OPS TEST OF ENG #2 FIRE AD OVERHEAT DETECTION W/ CFDS IAW AMM 26-12-00. OPS TEST OK) FOR REMOVAL AND REPLACEMENT OF AGB LOOP B (4002WD2), FIRE HARNESS (4166KS) AND ENG #2 FIRE DETECTION OPS TEST. MDDR CLRD, MX-4 UPDATED, PLAC REMOVED.