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-PHF, THE CREW RECEIVED A LT 14TH STAGE DUCT OVERHEAT WARNING MESSAGE. THE QRH WAS COMPLIED WITH AND AN EMERGENCY WAS DECLARED. THE AIRCRAFT RETURNED TO ATL AND LANDED SAFELY. MAINTENANCE FOUND A LOOSE CONNECTION ON THE LEFT 14TH STAGE BLEED AIR DUCT LOOP AND TIGHTENED THE LOOSE TERMINAL. MAINTENANCE RAN THE ENGINE AT MAX POWER. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)