As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FORWARD FLIGHT ATTENDANT PANEL INDICATING DOOR 4R TO CHECK DOOR PRESSURE. REPLACED THE R4 DOOR DAMPER AND EMERGENCY OPERATION CYLINDER IAW AMM 52-11-14 AND EA 379959 - A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO FAULTS NOTED