What was found
FLT 171 - JIJ- DURING TAKEOFF EPR INDICATIONS WAS BLANK RIGHT ENGINE AND N1 WITH FLUCTUATIONS AT REDUCE POWER ON RIGHT ENGINE AFTER 5 MINUTES INDICATIONS WAS NORMAL. AFTER 35 MINUTES IN FLIGHT RETURNED TO AIRPORT. AT PLATFORM, TECHNICAL PERSONNEL CHECKED CHP DETECTOR MAGNETIC AND INLET AND OUTLET FOR GENERAL CONDITIONS IAW FIM 77-21-00. A BORESCOPE INSPECTION AND ENGINE RUN WERE ACCOMPLISHED WITHOUT MESSAGES IN EICAS OF PHYSICAL DAMAGES. (M)