What was found
DURING MAINTENANCE INSPECTION FOUND THE LEFT EMERGENCY LIGHT EXTRUSIONS (1, 2, 3, 4, 6) DAMAGED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE LEFT EMERGENCY LIGHT EXTRUSIONS (1, 2, 3, 4, 6) IAW EMB 140 AMM 33-50-12. THE AIRCRAFT WAS RETURNED TO SERVICE.