As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REMOVAL OF AFT CARGO DOOR SILL,FOUND MID INNER CHORD IS CORRODED PN MM670-35669-001. (C-CHECK RO 4/1/2021) INSTALLED NEW MID INNER CHORD ON AFT CARGO DOOR SILL P/N MM670-35085-001 IAW DWG MM670-35085 REV L / COMPLIED WITH 51-900-1002 (CL600-2C10)