As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BRAKE OVHT MSG EMERGENCY IN FLIGHT AT FL 340 C/W QRH ALL INDICATIONS NORMAL. REOCCURRED APPROX 15 MINS LATER AGAIN FOLLOWED QRH ALL IND RET TO NORMAL BUT LEFT GEAR DOWN AND RET TO ATL. AIRCRAFT RETURNED BACK TO ATL AFTER T/O, EMERGENCY DECLARED.