What was found
B-18207 DUE PERFORMANCE A "PACK OFF",MAX THRUST T/O PERFORMED,AT 500 FT ENG-3 SURGED,THRUST REDUCED ALL PARAMETERS NORMAL.C/A:1.IAW FIM 71-00-00,FIG 107,INSPECT ENG INLET/EXHAUST AREA,MCDS AND BLEED PORTS,BORESCOPE INSPECTED FOR COMPRESSOR/TURBINE BLADES,ALL CONDITION NORMAL. 2.CHECK FOUND INLET GUIDE VANE OUT OF RIG AND ADJUSTED,PERFORMED ENG MAX POWER TEST SATISDIED. 3.THE MOC DECIDED TO REPLACED ENG-3 DUE SURGE ROOT CAUSE NOT IDENTIFIED,ENG REPLACED AND RUN-UP TEST NORMAL.