As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SECUNDARY NRC IN REFERENCE WITH NRC 00160: AFTER SUPPORT DIAPHRAGM REMOVAL, CORROSION AND ELONGATED HOLES WAS FOUND ON ATTACHMENT AREA. SUPPORT OF DIAPHRAGM WAS EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-00-00-101-001-A01 AND WAS REPLACED PER CRJ900 SRM 51-42-21-001-001-A01 AND CRJ900 SRM 51-42-06-001-001-A01