What was found
(CAN) DURING INSPECTION OF THE LPT ASSEMBLY IT WAS DISCOVERED THAT THE LPT SHAFT HAD A SEVERE RUB AND HEAT DISCOLORATION ON THE OUTSIDE DIAMETER, LOCATED IN THE AREA OF THE HPT SLEEVE ALSO RUBBED AT FOUR LOCATION. THE SLEEVE IS ASSEMBLED INSIDE THE HPT SHAFT. THIS UNUSUAL CONDITION WAS NOTED FOR THE FIRST TIME AT RRC, THE LP SHAFT IS A CRITICAL PART. NO VIBRATION WAS REPORTED FROM THE LAST CUSTOMER, ENGINE CAE 330085 IS A LOANER ENGINE. THE LPT SHAFT, HPT SHAFT AND HPT SHAFT SLEEVE HAVE BEEN RETURNED TO INDIANAPOLIS FOR INVESTIGATION.