What was found
NR 1 ENG FOUND 1EA 9TH STG COMPRESSOR VANE CRACKED COMPLETELY THRU VIEWED FROM CONVEX SIDE. PER THE RECOMMENDATIONS OF MANUFACTURER ALL OPERATORS WIRE PW4000/72-35-25/CTS:ERC:08-5-08-1, PERFORMED A BORESCOPE INSPECTION OF THE SUBJECT ENGINE TO CHECK FOR HP COMPRESSOR, STAGE-9 STATOR AIRFOIL CRACKING. ONE VANE WAS FOUND CRACKED COMPLETELY THROUGH THE AIRFOIL. THE ENGINE WAS REPLACED PRIOR TO FURTHER FLT, AND AS THIS ENGINE WAS LEASED FROM MANUFACTURER IT WAS RETURNED TO THEM IN AN UNSERVICEABLE CONDITION. THE ISSUE OF STAGE-9 STATOR CRACKING IS THE SUBJECT OF A PROPOSED MANUFACTURER`S FLEET MANAGEMENT PLAN.