As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PART REMOVED AT SCHEDULED INSPECTION, FOUND CRACKED AT FLANGE. SB TPE331-72-0840 AUTHORIZES INSTALLATION OF THIS PART TO INCREASE SEAL PLATE FLANGE PRESSURE AGAINST FIRST STAGE ROTOR. INCREASED PRESSURE CAUSES CRACKING AT SEAL FLANGE. THIS IS A CRITICAL LIFE-LIMITED COMPONENT. LIFE-LIMIT = 20,000 CYCLES. SUBMITTER STATES THIS IS THE 14TH SEAL PLATE FOUND CRACKED. PART TOTAL CYCLES, 3,550.