As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPPER DIAPHRAM AT LAV DRAIN CORRODED. (C CHECK RO 5/23/22) REMOVED AND INSTALLED NEW UPPER DISPHRAGM AT LAV DRAIN AND SUPPORT ANGLE REF. CRJ-900 SRM, 51-42-06-001-001-A01 AND DWG SH670-32280 REV H. COMPLIED WITH TASK CARD 51-900-1002-SKY, LEAK CHECKS GOOD