Abstract:
PT. Air Liquide Indonesia provides a service namely corrective maintenance for
every customer. There was an increasing corrective maintenance rate of 35% with
an increase of 9 cases from January-March 2023. If these increases continue to
occur, it will result in unexpected expenses and reduce customer trust. The objective
of this study is to identify the root causes of corrective maintenance cases and
develop effective strategies to reduce such occurrences and ultimately improve
equipment reliability, operational efficiency, and customer satisfaction. This
increasing occurred and three common problems were seen, namely reduction
popping at PSV metering station, leak from top and bottom valve, and pressure
building tank leak. These three problems become parameters for analysis of causes
and consequences. This research uses the PDCA method by four stages of PDCA.
The implemented improvements are spare part check with check sheet of spare parts
and additional note for Work Instructions of shutoff valve. The result of the
improvement is 17% reduction of customer complaints or corrective maintenance
cases. With there is no repeating in three common problems, except in pressure
building tank leak has one case after implementation of improvement. By this
research, PT Air Liquide Indonesia saved the cost of IDR 29,720,376 in April 2023.
