As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REMOTION OF FWD FORMER IN STA. FS= 311.75 AT PASSENGER DOOR INTERNAL ESTRUCTURE RELATED WITH NRC 00369 ]: CORROSION ON INTERCOSTAL DD7 CLIP IN STA. FS= 311.75 AT MAIN ENTRANCE DOOR. (L1) (PTAS) CORROSION LEVEL 2, INTERCOSTAL DD7 CLIP IN STA. FS= 311.75 WAS REPLACED PER CRJ/900 SRM 51-42-06-001-001-A01