As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 DOOR BINDS WHEN CLOSING. DOOR STARTS DOWN AND BINDS AFTER MOVING ONE OR TWO INCHES, PIECES OF CHAIN FELL TO THE FLOOR IN THE COURIER AREA. REMOVED & REPLACED REAR CHAIN ASSY ON L1 DOOR IAW AMM 52-11-09, OPS CHECKED GOOD. ACFT OK FOR SERVICE