IMPLEMENTATION OF P-CHART METHOD FOR QUALITY CONTROL IN CANNED CORNED BEEF PRODUCTION (A Case Study at PT Suryajaya Abadiperkasa)

Abstrak

This study investigates the effectiveness of the P-chart method in monitoring quality control within the canned corned beef production line at PT Suryajaya Abadiperkasa. Using daily production data from multiple batches, the proportion of defective units was analyzed through Statistical Process Control (SPC). Data collection involved direct observation, internal documentation, and defect tracking at the end of the production line. The P-chart analysis revealed that all data points fell within the upper and lower control limits, indicating the process was statistically stable. Despite this, an average defect rate of 2.21% persisted, suggesting the presence of common cause variations. These findings confirm the applicability of the P-chart as a monitoring tool; however, further root cause analysis is needed to reduce recurring defects. Future quality improvements are recommended through the integration of additional tools such as Pareto analysis and cause-and-effect diagrams.