As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON RETEINER THROUGH ACCESS PANEL NBR:598CT INCLUDING HARDWARE (17EAS), ALSO WS= 70 TO WS=48 OF T.E AT LT WING. RETEINER THROUGH ACCESS PANEL NR 598CT WAS CLEANED AND GVI WAS PERFORMED AND CORROSION NOT WAS FOUND IAW SRM 51-41-02-001-001-A01 AND SRM 51-11-00-001-001-A01. TRAILING EDGE LH WING WAS REPLACED PER CRJ-900 SRM 51-41-02-001-001-A01.