What was found
FLT NR 396 - MCO/MIA - AFTER TAKEOFF, APPROXIMATELY 4000 FEET RIGHT ENGINE PRODUCED BANGING NOISE AND TORQUE FLUCTUATIONS. PERFORMED PRECAUTIONARY SHUT DOWN OF RIGHT ENGINE AND RETURNED TO MCO. AIRCRAFT LANDED WITHOUT INCIDENT. INSPECTED THE RIGHT ENGINE INLET, EXHAUST, CONTROLS AND BLEED VALVE WITH NO DEFECTS NOTED. PERFORMED POWER ASSURANCE AND STALL CHECK RUNS WITH NO DEFECTS NOTED. SERVICED ENGINE OIL. THE AIRCRAFT WAS SATISFACTORY TEST FLOWN FOR 1.5 HOURS. AIRCRAFT THEN RELEASED TO SERVICE. (M)