As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG FIRE FIRE DETECTION LOWER LOOP IS RUBBING ON LOOP SUPPORT TUBING AT 12:00 POSITION (BIFURCATION AREA BELOW ACCESSORY GEAR BOX). INSTALLED NR 1 ENG FIRE DETECTION LOWER LOOP AND ENSURED THERE IS A PROPER SPACING BETWEEN THE FIRE DETECTION LOOP AND SUPPORT TUBE ASSEMBLY. NO DAMAGE NOTED ON FIRE DETECTION ELEMENT. DONE IAW AMM 26-11-02-264-131.