As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOWARD WATER WASTE SERVICE DOOR SURROUND STRUCTURE LOWER DIAPHRAGM (PN: SH670-32284-3) CORRODED (C-CHECK RO 10/22/2021) REPLACED FORWARD WASTER WASTE SERVICE DOOR SURROUND STRUCTURE LOWER DIAPHRAGM REF DWG SH670-32280 REV. H AND CRJ900 SRM 51-42-06-001-001-A01. COMPLIED WITH 51-900-1002-SKY. LEAK CHECK GOOD.