As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AS RECEIVED, THERE ARE MULTIPLE CRACK INDICATIONS FOUND ON THE SERRATION LOCATION 61. THE CRACK INDICATIONS ARE FOUND AT TWO SERRATION LOCATIONS. THE CRACKS APPEAR TO CROSS CORNERS AT SOME LOCATIONS. THE CRACKS APPEAR TO GROW IN THE DIRECTION OF THE DISK BORE. NO CRACKS ARE PERMITTED PER INSPECTION/CHECK-05. THIS CONDITION WAS ALSO RECENTLY REPORTED FOR TWO OTHER DISKS, SAME PART NUMBER AND OPERATOR, UNDER FAA SDR #KC1R20210112001 AND FAA SDR #KC1R20210326001. NOTE: ACTUAL TIME SINCE (HOURS) IS UNKNOWN. TOTAL TIME ENTERED IN THIS BLOCK.