As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND ON INTERCOSTAL AT STGR 21L FS 333-FS 349. C-CHECK RO 1/5/2021. REMOVED AND REPLACED NEW INTERCOSTAL P/N SH670-31823-1S AT FS 333.00 TO FS 349.00 STGR 21L, REF CRJ700 SRM 51-42-06-001-001-A01 AND DWG SH670-31810 REV Y. COMPLIED WITH TASK CARD 51-900-1002-SKY. LEAK CHECK GOOD.