What was found
ON GROUND CABIN DOOR CAS MESSAGE ILLUMINATED . USED CHECKLIST FOR DOOR RESET WHICH WOULD NOT RESET. INSPECTED DOOR AND LOWER PINS STICK OUT 1/16" WHILE OTHER PINS ARE RECESSED IN DOOR FRAME. COMPLIED WITH MAIN CABIN DOOR HEALTH CHECK, POWER UP ACFT CLOSED CABIN DOOR & UNABLE TO DUPLICATED PROBLEM, PERFORMED ARES DOWNLOAD & SENT TO TEAM LATITUDE FOR REVIEW. INTERROGATED CMC & FOUND MESSAGE POSTED DUE CABIN DOOR INNER HANDLE NOT SECURED BY PAWL, CHECKED WIRING & NO DEFECTS. NOTED, ACCESSED CABIN DOOR DISCONNECT WIRE HARNESS PC 048 & NOTED THAT MOVING HARNESS AROUND WITH CABIN DOOR CLOSED, DOOR OPEN CAS MESSAGE ILLUMINATED & GD.BACK OUT. FOUND HARNESS ELECTRICAL PLUG NOT LOCK, WPS ABLE TO REMOVED ELECTRICAL PLUG BY PULLING UP ON PLUG. INSTALLED & SECURED CABIN DOOR HARNESS PC 048 ELECTRICAL PLUG, PERFORMED SEVERAL SATTSFACTDRY.OPS CHECKS OF CABIN DOOR IAW AMM 52-10-00,