As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A BI-WEEKLY INSPECTION, FOUND 5TH RIVET AFT OF FRAME 90 ON STRINGER 28L HEAD WAS POPPED OFF AND SKIN SLIGHTLY BULDGED OUT. UPON FURTHER INVESTAGATION FOUND CORRISION UNDER STR 28L . REMOVED AND REPLACED STR 28L IAW ETD2022-170-035434.