PURPOSE The purpose of this recommended practice is to provide design recommendations for passenger cabin entry doors@ service doors@ and emergency exits. The objective is to make opening procedure simple@ quick@ obvious@ and reliable for normal and emergency conditions to all occupants. Note: a. It is not the purpose of this ARP to specify the design methods or specific mechanisms to accomplish the objectives. b. Nor is the purpose to include the closing operation of exits. The intent of this ARP is to provide for opening of exits for fast emergency evacuation@ when necessary.