What was found
AIRCRAFT WAS GROUNDED: ON CLIMB OUT THROUGH 1000' ENG 2 OVHT ILLUMINATED WITH MASTER CAUTION. LIGHT EXTINGUISHED WITH QRC PROCEDURE. DECESION MADE TRO RETURN TO DFW, EMERGENCY DECLARED AND LANDED OVERWIGHT WITHOUT INCIDENT. LIGHT ILLUMINATED AGAIN ON TAXI TO GATE POST ARFF INSPECTION. ARFF REPORTED NO ABNORMALITIES AND NO ABNORMAL COCKPIT INDICATIONS. MAINTENANCE PERFORMED FIM 26-10-00-810-805 STEP F.4.C FOUND ENG CORE RIGHT LOOP A M1760 OUT OF LIMITS AND REPLACED ENG CORE RIGHT LOOP A DETECTOR M1760 PER AMM 26-11-01