As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"INITIAL INSPECTION : CORROSION ON INTERCOSTALS AT STGR 26LH AND 26RH BTW STA FS349 TO FS364 MAIN AVIONICS COMPARTMENT ( E/E ) (TCI 100-09) "SUMMARY: INTERCOSTALS AT STGR 26LH AND 26RH BTW STA FS349 TO FS364 MAIN AVIONICS COMPARTMENT ( E/E ) WERE REPLACED PER CRJ900 SRM 51-42-06-001-001-A01 AND 51-42-21-001-001-A01. LEVEL CORROSION II