What was found
NR 1 ENG STRUT O/H LIGHT CAME ON. BLEED AIR WAS BEING USED FOR PACK. OPS AFTER AIR WAS TURNED OFF, O/H LIGHT EXTINGUISHED, ACCOMP ENG STRUT O/H LIGHT ON CKLST. ESTABLISH PACK OPS USING NR 2 BLEED. OPENED NR 1 STRUT ACCESS PANELS, FOUND AFT UPPER LOOP IN CONTACT WITH LOWER LOOP BRACKET, REPOSITIONED. ALSO, FOUND LOOPS CONN LOOSE AT FUSELAGE, RE-TIGHTENED AND RE-SAFETIED. RAN ENG PER JRH A DIF POWER SETTING. NO LEAKS, NO LIGHT, GND OPS CK GOOD. RE-INSTALLED STRUT ACCESS PANELS.