As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN AFT SERVICE DOOR CUTOUT LOWER FWD CORNER -INT SKIN EDGE HAS EVIDENCE OF CORROSION GROUNDED - YES. REMOVED CORROSION AND FOUND OUT OF LIMITS IAW SRM 33-20-29. REMAINING MATERIAL .034. LOCATED DRILLED AND DEBURRED FITTING IAW SRM 51-44-11 AND DWG D534800422 INSTALLED FITTING IAW SRM 51-42-11 AND SRM 51-72-11.