As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FRAME AT FS310 CORRODED BETWEEN STGR26L AND STGR26R. (C-CHECK) RO 2/1/2021 REMOVED AND REPLACED FRAME SECTOR IAW CRJ 200 SRM 51-42-06 & 51-42-21. REFER TO CONTINUATION CARD FOR ALL WORK PERFORMED, AND COMPLIED WITH SKYWEST CARD 51-900-1003-SKY. 337 ATTACHED. / PART FOR PART REPLACEMENT, NO WEIGHT CHANGE. REFERENCED DRAWING 601R32002 FOR FASTENER CALL OUT.