As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO DFW DUE TO LOOSING EGT INDICATION ON THE #2 ENGINE 30 MINUTES INTO THE FLIGHT. THE AIRCRAFT LANDED SAFELY AT DFW WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED #2 ENGINE EGT WIRE HARNESS ASSEMBLY PER AMM 77-21-43. MAINTENANCE ALSO REPLACED ALL 4 EGT THERMOCOUPLES ON #2 ENGINE PER AMM 77-21-15. AALA202301249254, AALA202301240841, AALA202301248261 AND AALA202301244418. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.