As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C/W AD 75-23-08R5, THE WASTEGATE OUTLET COUPLING WAS FOUND SEVERELY CRACKED. THE CRACK WAS FOUND RADIALLY ALONG THE COUPLING AND EXTENDED ABOUT 50 PERCENT OF THE TOTAL CIRCUMFERENCE OF THE PART. THIS NEW COUPLING IS NOT LIFE-LIMITED PER TABLE ONE OF THE ABOVE MENTIONED AD.