1. Explain the difference between controlled and uncontrolled documents/publications. 2. Discuss the purpose of Advisory Circulars (AC) and the effect that they have on the maintenance organization. 3. What is the primary objective of a record keeping system? 4. What are the penalties for not keeping a record system for you and your company? What can you. as an aviation maintenance manager. do to ensure accurate record keeping? S. Explain the importance of service bulletins.