As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUBJECT ENGINE WAS RECEIVED DUE TO HIGH TIME. DURING DISASSEMBLY AND INSP OF THE HPC THE DIFFUSER AIRSEAL PN 56H192, SN CENCBG1041 WAS FOUND WITH LINEAR CRACKS IN THE BOLT HOLE FLANGE ID, IAW CIR MANUAL PN 51A750 INSP CHECK 02 (NDI) NO CRACKS ARE ALLOWED. ENGINEERING INVESTIGATING. (K)