What was found
DURING MAINTENANCE INSPECTION FOUND THE CABIN FLOOR EMERGENCY AISLE LIGHT SEGMENTS NR 1, 4, 6 & 7 PLASTIC EXTRUSION LIGHT CRACKED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1, 4, 6 & 7 PLASTIC EXTRUSION LIGHT IAW AMM 33-50-12. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.