What was found
TAKING OFF ON 30R AT APPROXIMATELY 1000FT EXPERIENCED A NR 2 ENGINE EGT OVERHEAT 966 DEGREES AND LARGE BANGING SOUND (COMPRESSOR STALL). PULLED NR 2 THROTTLE TO IDLE IMMEDIATELY. EGT CAMEBACK TO NORMAL (740-760 ) AND COMPRESSOR STALL STOPPED. AFTER THROTTLE AT IDLE N1 REMAINED AT 26 EGT AT 740-760 , N2 53-58. DUMPED FUEL AND RETURNED TO LAND. RT ENG INLET AND EXHAUST CHECKED PER MM 72-00-04 NO FAULTS NOTED EGR PERFORMED PER JRH N1 HUNG AT 14.8% EGT 754 N2 53% FF 1330. RT ENGINE FAILED BORESCOPE INSPECTION WITH CATASTROPHIC DAMAGE IN AFT HPC STAGES. R&R NR 2 ENGINE WORK CARD 71T0902.