As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 605 HAS CORROSION AND BARE METAL ON FWD SIDE OF FRAME & UPPER SURFACE OF LOWER FLANGE FROM JUST BELOW CARGO DOOR SILL TO S23R. R & R FRAME SECTOR BS 605, FROM S20R - 20L INSTALLED & FRAME SECTOR BS 605.00 FROM STRINGERS 17L - 20L. INSTALLED SRM 51-42-06, SRM 51-42-21