What was found
DOOR FLIGHT LOCK 1L STATUS MESSAGE. TRANSFERRED TO DMI #100228210 IAW MEL 52-11-5-2 CAT "C" DUE 5-26-25. 'M' PROCEDURE COMPLIED WITH. PLACARDS INSTALLED. (100228213, 100228216, 100228219, 100228222, 100228225) - REFERENCE DMI #100228210 DOOR FLIGHT LOCK 1L (M) PROCEDURE. 100228232 - TERMINATING SERVICE IAW FIM 52-11 TASK 826. PERFORMED FLIGHT LOCK CONTROL TEST IAW AMM 52-11-26-740-801. TEST FAILED. PERFORMED VOLTAGE CHECK IAW FIM 52-11 TASK 826 STEP 3(A)-(D). VOLTAGE CONTINUITY CHECKS GOOD. SUSPECT FAULTY FLIGHT LOCK ACTUATOR. 100228233 - REMOVED AND REPLACED L1 DOOR FLIGHT LOCK ACTUATOR IAW AMM 52-11-26. ALL CHECKS GOOD.