As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON ACCESS PANEL 542AZ, 542BZ, 642AZ AND 642BZ. CORROSION WERE REMOVED ON ACCESS PANEL 542BZ AND 642BZ PER CRJ-900 SRM 51-21-06-001-001-A01 AND WERE FOUND WITHIN LIMITS PER CRJ-900 SRM 53-00-01-101-001-A01. ACCESS PANELS 542AZ AND 642AZ WERE REPLACED AND VERIFIED PER CRJ900 SRM 57-22-55-001-001-A01 ITEM 3A AND 4A