As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EVIDENCE OF CORROSION EXIST ON FRAME @FS349.00 BETWEEN STRINGER 26L AND 26R (C-CHECK RO 10/22/2021) REPLACED FS349 FRAME SECTION FROM STR 23L TO 24R REF DWG SH690-31350 REV. M AND CRJ900 SRM 51-42-06-001-001-A01. COMPLIED WITH 51-900-1002-SKY. LEAK CHECK GOOD.