As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND ON PAX DOOR INTERCOSTAL DD3 BETWEEN FS 311.75 AND 320.163 (C-CHECK RO 5/25/2021) REMOVED CORROSION ON INTERCOSTAL DD3 PER CRJ 900 51-21-06-001-001-A01. ORIGINAL MATERIAL THICKNESS IS .050 PER CRJ 900 SRM 52-11-06-001-001-A01, 100% MATERIAL LOSS FOUND TO BE OUT OF LIMITS. REPLACED INTERCOSTAL PER CRJ 900 SRM 51-42-06-001-001-A01 AND DWG 601R31702 REV N. COMPLIED WITH ST 51-900-1002-SKY. LEAK CHECK GOOD. (SEE DETAILS ON CONTINUE CARD)