As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN AVIONICS BAY STR 20R HAS MULTIPLE AREAS OF CORROSION BETWEEN FS333.00 AND FS379.00 (C-CHECK RO 6/22/2021) REPLACED STR 20R FROM FS333 - FS379. REF CRJ900 SRM 53-00-03-201-001-A02 REF CRJ900 SRM 51-42-06-001-001-A01, DWG SH670-31401 REV A AND REO 690-53-21-1361 REV -- DATED 2021-04-30. COMPLIED WITH TASK CARD 51-900-1002-SKY. NO LEAKS NOTED,