What was found
RIGHT ENGINE CHIP DETECTOR CAME ON AND STAYED ON IN FLIGHT, RIGHT CHIP DETECT LIGHT ILLUMINATED. FOLLOWED QRH AND LIGHT PERSISTED. IN FLIGHT ALL OTHER PARAMETERS WERE NORMAL. DELTA T SPLIT AT 9.00 AND 50 PERCENT TORQUE IS 40 FT HOTTER TO THE RIGHT. AIR RETURN TO DTW. MAINTENANCE ACFT 429 RIGHT ENGINE, S/N GE-E785664, S/N OFF/785747. COMPLETED TASK CARD 7910-303 & 791107 FOUND NON ALLOWABLE DEBRIS AND NO DEBRIS, AFTER RUNS INITIATED SFWI TO REVIEW LAB ANALYSIS WITHIN 40 FLT HOURS.