As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUPPORT BEAM UNDER PNL 651YBX AT RIGHT WING STA 368.7" AFT OF REAR SPAR FWD END IS EXFOLIATED ALSO ON THE TOP AFT PORTION. REMOVED AND INSTALLED SUPPORT BEAM UNDER PANEL 651YBX IAW B767 SRM 51-40-02, 51-40-04 AND AMM 20-10-23-4, ACFT WAS GROUNDED.