As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*CORROSION FOUND ON INTERCOSTAL AFT OF AVIONICS BAY DOOR ON L/H SIDE OF STGR27. (C CHECK) RO 3/27/2020 REMOVED AND INSTALLED A NEW INTERCOSTAL AFT OF AVIONICS BAY DOOR ON THE LH SIDE OF STRG 27 REF BOMBARDIER DWG AND CRJ 200 SRM. COMPLIED WITH TASK CARD. PRESSURE CHECK GOOD. SEE CONTINUATION FOR FURTHER DETAILS.