As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS 605 FRAME IS CORRODED IN ARES FROM STR 24L AND 23R ON BOTH UPPER AND LOWER FLANGES (C-CHECK RO 1/5/2022) INSTALLED NEW FRAME SECTION PN: 601R36026-27 AT F.S 605 BETWEEN STGR 20L & 20R IAW CRJ 200 SRM 51-42-06. COMPLETED TASK CARD 51-900-1003-SKY AND ATTACHED COMPLETED FORM 337. NO WEIGHT CHANGE.