As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DATUM 4 INTERCOSTAL BETWEEN APPROX FS320 - FS338 HAS CORROSION (C-CHECK RO 9/6/2023) INSTALLED NEWLY DRILLED INTERCOSTAL D4 BETWEEN FS320 - FS338 REF CRJ200 SRM 51-42-06 REF CRJ200 SRM 51-42-21 AND DWG 601R31702 REV-N. COMPLIED WITH 51-900-1003-SKY AND PRESSURE CHECK GOOD . SEE CONTINUATION CARD FOR DETAILS