As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE HPT STAGE 1 DISK HAS BEEN REMOVED FROM SERVICE EARLY DUE FAILED ULTRASONIC INSPECTION FOR SIGNAL NOISE RATIO IAW SP008. DR #02018991 WAS REJECTED BY OEM. TO BE REPORTED IN LINE WITH MANDATORY REPORTING REQUIREMENT PART 145 AMC 20-8A 9.3.(J) ANY DEFECT IN A LIFE-CONTROLLED CRITICAL PART THAT CAUSES ITS RETIREMENT BEFORE THE COMPLETION OF ITS FULL-SERVICE LIFE.