As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONICS BAY DOOR SURROUND STRUCTURE INTERCOSTAL HAS EVIDENCE OF CORROSION @FS364.00 BETWEEN STRINGERS 26R & 27 (C-CHECK RO 10/22/2021) REPLACED AVIONICS BAY SURROUND STRUCTURE INTERCOSTAL AT FS364 BETWEEN STR 26R AND 27 REF DWG SH670-32050 REV. J AND CRJ900 SRM 51-42-06-001-001-A01 AND CRJ900 SRM 51-42-21-001-001-A01. COMPLIED WITH 51-900-1002-SKY. LEAK CHECK GOOD.