As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONIC BAY BELOW FLOOR BOARD IN BETWEEN FS 349 AND FS 364 INTERCOSTAL HAS EVIDENCE OF CORROSION.AT STR 27R (C-CHECK) RO: 04/28/2019 BLENDED OUT CORROSION FROM INTERCOSTAL AT AVIONIC BAY BELOW FLOOR BOARD IN BETWEEN FS 349 AND FS 364, STR 27R IAW SRM. PRESSURE CHECK GOOD. OPERATIONAL TEST GOOD.