What was found
DURING THE PREFLIGHT INSPECTION, THE EMERGENCY LIGHTS TOWARDS THE REAR OF THE AIRCRAFT, FAILED TO ILLUMINATE. OUTSTATION MAINTENANCE INSPECTED THE AIRCRAFT FOR A FERRY FLIGHT TO PIT FOR REPAIR. THE FLIGHT WAS COMPLETED WITH NO PROBLEMS. PIT MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY PACK 7LK, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.