PT GMF Aero Asia Tbk is one of the biggest aircraft maintenance companies in the region, engaged in maintenance servicing aircraft and parts related. One of PT. GMF Aero Asia Tbk workshop still has the most significant problem and has not optimized on its production floor and does not yet have effectiveness for production. Researchers conducted observations in the field and processed the data using systematic layout planning (SLP) methods to redesign the facility layout approach to optimizing on the production floor. The data selected to be processed through OPC with the number of operations. Data processing using ARC, ARD, and flow process materials for alternative layouts and adjustment factor determination, looseness determination, area calculation. After processing the data, one alternate layout is generated with concern in distances and times. The results showed that decreased workload and decreased movement distance from every operation that already existed from the battery arrived until the end of the process, from 75% up to 95% optimized. By SLP method it can reduce material handling distance, alternative layout has 123.97 m2 to 98.6 m2 or area optimization as 20.46%.