As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: 1R CHECK DOOR PRESSURE ON FORWARD FLIGHT ATTENDANT PANEL ILLUMINATED. MAINTENANCE REPLACED THE R1 DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PERCUSSION MECHANISM DIAPHRAGM (AALA202511031977) AND THE SCHRADER VALVE (AALA202511042443) PER AMM 52-10-00.