As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PAX DOOR DD6 (MID. INTERCOSTAL) JUST BELOW LATCH DOOR MECH. HAS PATCH OF CORROSION REMOVED CORRODED DD6 MID INTERCOSTAL. LOCATED, DRILLED AND INSTALLED NEW SERVICEABLE DD6 MID INTERCOSTAL PN 601R318057-1 IAW CRJ 900 SRM 51-40-11-001-001-A01, 51-42-06-001-001-A01, AND 51-42-21-001-001-A01