As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERCOSTAL LOWER CORRODED BETWEEN FS 295.00 AND FS310.00 AND BETWEEN STRINGER 16L AND STRINGER 17L. C-CHECK RO 8/29/2020. REMOVED AND INSTALLED NEW INTERCOSTAL IAW CRJ 200 SRM AND DRAWING. COMPLIED WITH SKYCARD AND FORM M-337. WEIGHT AND BALANCE NOT AFFECTED.