What was found
ENGINE NR 1 FIRE LOOP B WILL NOT TEST FAULT LIGHT ILLUMINATED. GROUNDED-YES. PERFORMED INITIAL EVALUATION, PER B737-800 FIM 26-10 TASK 805, NO FAULTS FOUND. PERFORMED ALTERNATE DEACTIVATION, REF CHAP 5 TABLE 3 ITEMS 8 & 9. UPON VISUAL INSPECTION OF TERMINAL LUGS ON FIRE LOOP, FOUND LOOSE LUGS ON MW0326 AT M1760 AND M1759 CORE FIRE LOOP ASSEMBLIES. REPLACED BOTH LUGS, REF B737-800 AMM 26-11-02-960-802 AND 800-26EA-23189. REMOVED LUGS FOR REPAIR AND REINSTALLED REF AMM 26-11-01. OPERATIONS CHECK, REF AMM 26-11-00-710-801. OP CHECK GOOD. ETOPS GROUND VERIFICATION SUCCESSFUL. REVERSED ALTERNATED DEACTIVATION. THIS CLEARS MEL 26-2B CN 25014592. PLACARDS REMOVED, SEA MC FELIX NOTIFIED.