What was found
AFTER TAKEOFF, CONTROL TOWER REPORTED SPARKS AND BLUE FLAMES OUT OF THE RIGHT ENGINE, ALL ENGINE INDICATIONS WERE UNEVENTFUL, TWO ENGINE LANDING WAS MADE. PERFORMED BOROSCOPE OF C-7 HI PRESSURE COMP SECTION FOUND L/E OF ALL BLADES. FOD'D ENTIRE LENGTH. REMOVED AND REPLACED NR 2 ENGINE. AIRCRAFT WAS RETURNED TO SERVICE. (M)