What was found
4L SLIDE LIGHT WENT OUT DOOR 4LH ARMS AND DISARMS CORRECTLY LIGHT INDICATION PROBLEM WILL VERIFY GIRT BAR IS INGAGED PRIOR TO DISPATCH. APPROVED PLACED DOOR 4LH ARMING LIGHT INDICATION ON MEL WILL VERIFY ARMED PRIOR TO DISPATCH. #4LH DOOR FOLLOW RENDER CHECKLIST , VISUAL CHECKED GIRT BAR TRACKS THE MOVEMENT AND DISTANCE ,CHKED OK FOUND A LOT OF DEBREE AND GREASE AT THE SENSOR SWITCH FWD AND AFT BOTH SWITCHED OPERATES OK, AND NO DAMAGE CLEANED THE DEBREE CYCLE ARM SWITCH. TIME 4LH DOOR ARM LIGHTS OPS CHK GOOD. IAWMM52-11-25-735-024. AMM25-66-11.