What was found
AT 22,000 FT DURING CLIMB OUT, THE RT ENGINE FIRE LIGHT CAME ON. WHEN THE THROTTLE WAS REDUCED TO IDLE THE LIGHT EXTINGUISHED. DURING TROUBLESHOOTING, FOUND NO EVIDENCE OF FIRE & NO BLEED AIR LEAKS, FOUND ENGINE FIRE LOOP TO BE CONTACTING BLEED AIR LINE, ALSO TO BE CHAFED ABOUT 50% THROUGH. PERFORMED ENGINE RUN IAW CHECKLIST & BROUGHT RT ENGINE TO POWER. COULD NOT DUPLICATE ENGINE FIRE LIGHT AT THIS TIME ON GROUND. REMOVED RT ENGINE FIRE LOOP. INSTALLED A NEW FIRE LOOP IAW MM 26-11-01. OPS CHECKED GOOD IAW MM 26-11-00.