What was found
LT WING SLIDE EICAS MSG, RTFL. FOUND SENSOR S218 ON LT OVERWING PACK DOOR LOOSE BUT APPEARED TO BE WITHIN TOLERANCE (0.10) BUT WITH MOVEMENT CAUSED EICAS MSG. REMOVED SHIM FROM SENSOR S218 FOR TROUBLESHOOTING, NO HELP. WILL NEED TO RE-GAP S-218. AFTER REMOVING SHIM COCKPIT OVER HEAD LIGHT STILL FLICKERS, WHEN MOVING DOOR INTEGRATOR. FOUND 2 (EA) AFT LATCHES ON LT OFF WING SLIDE COMPARTMENT DR WORN. REPLACED BOTH LATCHES. CHECKED GAP OF SENSOR S218 AND ADJUSTED. NEED SYS CKS AFTER CLOSE UP. CHECKED AND CLOSED LT SIDE DOOR. NO MESSAGES AND NO LIGHT ON P5 PANEL.