As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON STGR 27 BTW FS1162.00 AND FS 1181.00 AT REAR FUSELAGE INERNAL STRUCURE. NEW STRINGER STGR 27 BTW FS1162.00 AND FS 1181.00 AT REAR FUSELAGE INERNAL STRUCURE WAS FABRICATED PER CRJ-900 DGW: MM670-38134 REV. F AND REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01 AND CRJ-900 SRM 51-42-06-001-001-A01