As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND SEAL FLANGE CRACKED. SB 72-0840 AUTHORIZES INSTALLATION OF THIS PART TO INCREASE TENSION AGAINST 1ST STAGE ROTOR. INCREASED TENSION RESULTS IN CRACKING AT THE SEAL FLANGE. SUBMITTER STATES THIS IS A CRITICAL SERVICE, LIFE-LIMITED COMPONENT. LIMIT - 20,000 CYCLES. PART TOTAL CYCLES, 5,574.