As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FRAME AT FS319.70 LH BETWEEN STGR18L AND 21L CORRODED. (C CHECK RO 2/17/2022) REMOVED AND INSTALLED NEW REPLACEMENT FRAME AT FS319.70 BETWEEN STGR18L AND 21L USING ALL NEW FASTENERS. REF BOMBARDIER DWG# SH670-31810 REV AE AND CRJ700 SRM 51-42-21-001-001-A01, CRJ700 SRM 51-42-06-001-001-A01. COMPLIED WITH TASK CARD 51-900-1002-SKY. ALL CHECKS GOOD