As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT FROM ATL, NR 1 ENGINE FIRE WARNING LIGHT CAME ON. NO BELL. LIGHT WENT OUT WHEN THROTTLED BACK. AIRCRAFT RETURNED TO ATL WITHOUT INCIDENT. ENGINE WAS SHUT DOWN. MAINTENANCE FOUND THE 13TH STAGE HIGH PRESSURE SUPPLY DUCT RUPTURED. REPLACED SAME. LEAKED CHECK PER MM 36-10-0. (M)