As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*CORROSION DETECTED ON STGR (22L) BETWEEN F.S. 501.00 AND F.S. 517.00, JUST FWD OF FBB FWD DOOR OPENING (MARKED). (C-CHECK) RO 3/3/2020 REMOVED STRINGER 22L AT 517.00-477.00 IAW CRJ900 SRM. INSTALLED STRINGER SPLICE IAW CRJ900 SRM. COMPLIED WITH AND M-337. NO LEAKS NOTED AT THIS TIME