As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOTIFICATION FROM RAMP OPS, L1 ENTRY DOOR STUCK IN MID POSITION. VERIFIED PNEUMATIC AIR MOTOR DRIVE CHAIN BROKEN AND RESTRICTING DOOR OPS. MANUALLY CLOSED DOOR IAW AMM 52-11-02-410-806. ITEM TRANSFERRED TO M574849 IAW MEL 52-10-3-2, PLACARD INSTALLED DMP COMPLIED WITH. L1 MAIN ENTRY DOOR DRIVE CHAIN DAMAGED. REPLACED DRIVE CHAIN, IAW AMM 52-11-09-400-801. ENTRY DOOR AT L-1 FUNCTIONS NORMALLY.