What was found
FIRE LOOP B LIGHT ILLUMINATED ON NR 1 ENGINE WITHOUT ANY OTHER WARNING BEING EVIDENCED. FOLLOWED PROCEDURES AND TESTED OPPOSITE LOOP WHICH TESTED GOOD. AIRCRAFT LANDED WITHOUT INCIDENT AND UPON INSPECTION OF BLEED AIR DUCTS NO LEAKS WERE DETECTED. ALSO, INSPECTED B LOOP AND NO DEFECTS WERE NOTED; AS PRECAUTIONARY MEASURE CLEANED AND SECURED APRON CONNECTORS; B SYSTEM OPS CHECKED GOOD IAW MM 26-10.