What was found
THE NR 2 ENGINE FAILED AFTER TAKEOFF. AUTOFEATHER WORKED AND TORQUE WENT TO ZERO. FLT CREW COMPLETED NECESSARY CHECK LIST & RETURNED TO THE FIELD. THE CAPTAIN INSPECTED THE NUMBER TWO NACELLE FOR FLUID, NONE WAS FOUND. THE PROP ROTATES WITH OUT BINDING. MX ABLE TO START THE NR 2 ENGINE, HOWEVER FUEL FLOW HUNG UP DURING START SEQUENCE. INSPECTED ENGINE INLET AND EXHAUST FOR DEFECTS, NONE WERE FOUND. THE ENGINE CONDITION PANEL WAS CHECKED FOR FLAGS NONE WERE NOTED. REMOVED AND REPLACED THE HMU AND FUEL PUMP ON THE NR 2 ENGINE. IAW WORK CARD 73-20-01R. RIGGED THE NUMBER ONE AND NR 2 ENGINE IAW 76-00-01Q. GROUND RAN AIRCRAFT, OPS CHECK GOOD.