<![CDATA[The main problems at injection molding department of PT. X is the large number of defective products (4941.781 units), that is caused by human factor and measurement error. This research aims to evaluate the worker’s ability in conducting inspection with Measurement System Analysis (MSA) and to decrease the number of defectives product by using fishbone diagram. The results of MSA for attribute data show that 55.2% of workers cannot conduct product inspection for scratch and blackspot defect, so retraining is needed. The result of MSA for variable data show that repeatability for outer diameter is 84.97% and for total height is 56.33%. The reproducibility for outer diameter is 15.03% and for the total height is 43.49%. The large percentage of repeatability indicates the high variation in a worker’s measurement, so the measurement instrument needs to be calibrated. The large percentage of reproducibility indicates the high variation in the measurement between workers, so retraining is needed to equalize the understanding standard of workers. Several suggestions as effort to decrease scratch, FOP, and black spot are gloves audit, providing fibrous fabrics at the basket and conveyor, providing incline to reduce the impact, providing stacking racks to avoid overlapping, and providing kassa wire to the air vents.]]>
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