A Planned Maintenance System (PMS) is a systematic approach to the maintenance and upkeep of a facility or system. It is designed to ensure that all equipment and systems are functioning properly and that any necessary repairs or upgrades are completed in a timely manner. The system typically involves a detailed schedule of inspections, tests, and preventive maintenance activities that are designed to identify potential problems before they become serious. The goal of a PMS is to keep equipment and systems running at peak efficiency and to reduce the likelihood of costly breakdowns or failures. Additionally, a PMS can help to ensure that safety standards are met and that the facility or system is operating in compliance with applicable regulations. By taking a proactive approach to maintenance, a PMS can help to reduce costs and increase the life expectancy of equipment and systems.