As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: REPETITIVE 4R DOOR PRESSURE CIDS PANEL INDICATIONS AND MULTIPLE SERVICINGS OF THE 4R DOOR DAMPER AND EMERGENCY OPERATION CYLINDER . MAINTENANCE REPLACED THE 4R DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-13-14. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.