This paper presents the development of an intelligent Assembly/Disassembly (A/D) system with the utilization of a haptic device. The development was aimed to assist the A/D process of aircraft parts maintenance with an intelligent algorithm. A comprehensive methodology is presented by an intelligent algorithm generating the best sequence for the assembled/disassembled parts. For this purpose, a genetic algorithm was chosen because of its effectiveness and compatibility dealing with the A/D sequencing problem. Furthermore, A/D process of the parts will also be calculated in the genetic algorithm process, which will show the effectiveness of the algorithm. Moreover, the concept of both natural and artificial constraints are applied to generate the path planning of the assembled/disassembled parts. It is believed that the combination of haptic, optimized sequence algorithm and intelligent path planning will increase efficiency for the overall aircraft parts maintenance process.