What was found
SEAL-ROTATING AIR HPT FRONT (FOS) THE SUBJECT FOS HAS FAILED FPI FOR CRACKS ON DIM E SEAL TEETH. FPI INDICATION "1 OFF CRACK 0.06" IN LENGTH GOING OVER INNER SEAL TEETH. 3 OTHER INDICATIONS ALSO OBSERVED; 0.04", 0.025", 0.015". DR 02298827 WAS REJECTED BY THE OEM AS “CFM HAS NO SUBSTANTIATION TO ACCEPT THE REPORTED CONDITION AND THEREFORE RECOMMENDED TO SCRAP THE PART”. TO BE REPORTED I.A.W AMC-20-8A (J) ANY DEFECT IN A LIFE-CONTROLLED CRITICAL PART THAT CAUSES ITS RETIREMENT BEFORE THE COMPLETION OF ITS FULL-SERVICE LIFE.