As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN AVIONICS BAY FS319.70 LOWER FRAME CORRODED BETWEEN STR 26L AND STR 26R (C-CHECK) RO 3/4/2021 REPLACED LOWER FRAME SECTOR AT FS319.70 FROM STRINGER 25L TO 23R REF CRJ900 SRM 53-00-06-201-006-A01, SRM 51-42-06-001-001-A01 & SRM 51-42-21-001-001-A01. SEE CONTINUATION CARD FOR DETAILS. CHECKS GOOD. COMPLIED WITH TASK CARD 51-900-1002-SKY.