As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON STRINGER SPLICE 24RH BTW FS330.00 TO FS336.00 AT MAIN AVIONICS COMPARTMENT STRINGER SPLICE 24RH BTW FS330.00 TO FS336.00 AT MAIN AVIONICS COMPARTMENT WAS REPLACED PER CRJ900 SRM 51-42-06-001-001-A01 & SRM 51-42-21-001-001-A01