As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L/H ENGINE AFT BYPASS TO T/R FLANGE SHOWS SIGNS OF CORROSION. ACCOMPLISHED CORROSION REMOVAL AND LH TR FLANGE BLEND AND PRIME ACCEPTABLE FOR CONTINUED SERVICE, REF NORDAM FIELD ENGINEERING DISPOSITION DOCUMENT NTRSD-21TP-163 DATED 9 AUGUST 2021.