As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB, NR 3 ENGINE FIRE DETECTION LIGHT REMAINED ILLUMINATED. ENGINE SHUT DOWN AFTER PERFORMING CHECK LIST ITEMS. AIRCRAFT RETURNED TO DEPARTURE AIRPORT AND LANDED WITHOUT INCIDENT. COMPANY MAINTENANCE DISCOVERED THE 13TH STAGE BLEED LINE SEPARATED AT 'T' (WELD AREA RUPTURED).