As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE CHECK, WHEN PERFORMING TASK CARD E190-05-21-00-816. CORROSION FOUND LT SIDE AT AFT SIL FR 19-21 LBL 44"-49" FWD WET AREA. REMOVED CORROSION REF SRM 51-10-03. FROM LT AFT SIL FR 19-21 AND USING SRM 51-12-01. PERFORMED HFEC INSP. ALONG AREA OF CORROSION REMOVAL, NO FURTHER DAMAGE NOTED IAW NDT MANUAL 51-00-00-916-803. COMPLIED WITH EA TASK CARD E15-369-01. THIS ITEM HAS BEEN CLASSIFIED AS A LEVEL 2 CORROSION.