As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INITIAL INSPECTION: CORROSION ON FLOOR SETTLEMENT (141ALF) AT MAIN AVIONICS COMPARTMENT FS280 BTW. STGR 25L AND 25R.(E/E)(100-09). SUMMARY: DAMAGED ANGLE SUPPORT, CRAWLWAY FLOOR ON FS=280.00 BTW STGR 25L AND 25R AT INTERNAL STRUCTURE OF MAIN AVIONICS COMPARTMENT WAS REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01 PAR. 6C AND SRM 51-42-20-001-001-A01. PAR 6A