As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, RT ENGINE FIRE DETECTION FAULT ILLUMINATED. AIR RETURN DUE TO QRH GUIDANCE. C/W ODI EVENT, WORKCARD 2611-2002 R ENG FIRE DETECTION INT CHECK FOUND FLAME DEFLECTION B LOOP BROKEN. REPLACED ALL FIVE LOOPS IAW AMM 26-11. OPS CHECKED NORMAL. HIGH POWER RUN ACCOMPLISHED, NO FAULTS.