As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C-03 CHECK THE R-1 DOOR DAMPER FAILED TO OPERATE CORRECTLY WHEN MOVED TO CLOSED POSITION. MAINTENANCE REMOVED AND REPLACED R-1 DOOR DAMPER CYLINDER IAW AMM TASK 52-11-14-000-001, OPERATIONAL CHECK WAS GOOD. SDR WILL BE SUBMITTED UPON RECEIPT OF VENDOR TEARDOWN REPORT.