As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"AWR, HIDDEN DAMAGE [DURING PERFORMING OF NRC 00274]: CORROSION ON STGR 20R BTW FS310-319.70 WAS FOUND. (FUS). ""STRINGER 20RH BTW FS280 TO FS333 WAS REPLACED FOR A NEW ONE PER CRJ-900 SRM 51-42-20-001-001-A01 AND CRJ-900 SRM 51-42-06-001-001-A01.LEVEL CORROSION: 2 "