As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TURBO EXHAUST WYE RECEIVED FOR INSP AND REPAIR. FOUND UNIT HAD A CRACK AROUND WELD ON OUTLET TUBE SIDE. IT WAS EVIDENT TUBE AND INTERNAL DIVIDER HAD BEEN REPLACED. IMPROPER MATERIALS HAD BEEN UTILIZED IN THE FABRICATION OF THE OUTLET TUBE AND DIIVDER.