As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT A/C BLOCK-IN, WHEN L1 DOOR WAS OPENED FOUND L1 DOOR, PROXIMITY ACTUATOR FOR S10214, DETATCHED FROM GIRT BAR SLIDER (RIVETS SHEARED). COMPLIED WITH PART 2 OF E.A. F-2560-T0364440. REMOVED AND REPLACED L1 DOOR GIRT BAR SLIDER ASSEMBLY PER 757 AMM 25-66-10-2.