Defects analysis of Boeing 737-800 cabin using six sigma method at PT. XYZ

PT. XYZ is a company in the field of international aviation industry engaged in the business of Maintenance Repair Overhaul (MRO) of aircraft. The company has a special unit involved in addressing the maintenance cabins called cabin maintenance unit. This unit has a defect record which shows the most commonly defects are found in Boeing 737-800 cabin. Thus, this research is focused on improving the quality Boeing 737-800 cabin using Six Sigma DMAIC method. This method is used to continuous improvement, so as to achieve zero defect. The results of sigma level showed that subjects had a broken placard level of 3.73 and 3.83 unlevel table. Sigma level not achieved in both subjects, so an improvements must be made in turns of Standard Operating Procedure (SOP), training for mechanics, control the quality of aircraft cabin components in the warehouse, and focus on the inspection of aircraft components.