As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CATERING UNABLE TO OPEN THE R4 DOOR USING THE EXTERNAL HANDLE. FOUND SPLIT RINGS DEFECTIVE. REMOVED EXTERIOR HANDLE MECHANISM IAW 52-11-02. CLEANED AND LUBRICATED THE EXTERIOR HANDLE MECHANISM IAW 12-21-20. REPLACED THE SPLIT RINGS AND O-RING ON THE R4 DOOR AND REINSTALLED EXTERIOR DOOR HANDLE MECHANISM IAW AMM 52-11-02. OPS CHECKED NORMAL.