As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. HISTORY SHOWS FLIGHT DELAYS CAUSED BY 3R DOOR BOTTLE PRESSURE LOW. INITIAL SERVICING OF DOOR BOTTLE DID NOT FIX THE PROBLEM. REPLACED DIAPHRAGM IN THE PERCUSSION MECHANISM OF THE DOOR DAMPER AND SERVICED DOOR ASSIST BOTTLE NO LEAKS NOTED.