Scheduled maintenance - Maintenance level that requires planning, significant amount of time, and high coordination between different departments, and is usually implemented through a work order. That is, maintenance Is carried out at predetermined times in factories, buildings and equipment to ensure their proper operation For a given period (also: preventive maintenance).
Forecast maintenance - A maintenance technique designed to monitor the condition of equipment to assess when a particular maintenance operation is to be performed. The chosen way of monitoring the need for maintenance is to be effective so that it provides sufficient warning time for the required action.
Ideally, forecast maintenance allows you to minimize the costs of maintenance operations that are done in vain - ongoing or planned . The forecast maintenance is focused and therefore minimizes the time when the equipment is not available and even certain maintenance costs can be minimized .
Despite the many advantages of forecasted maintenance, this maintenance is not applicable for certain equipment and often the cost of monitoring equipment is high. In addition, there are situations where a high level of skill and experience is required in order to accurately interpret the monitoring data so that contractors are required to perform monitoring and maintenance.
The Company should evaluate the maintenance strategy in accordance with the equipment with considerations of efficiency, cost and reliability.
There is currently no broad consensus on the formal definition of a complex system , But the common definition is to define a complex system as a system that contains a large number of components that affect each other .
Complex systems may, by definition, exhibit complex and highly irregular behavior in which it is difficult to predict what a particular component will do over time, although at some intervals a complex system may also exhibit relatively simple behavior.
In the field of aviation as a complex system there is a maintenance technique called AOG= A aircraft on the ground Which describes a maintenance emergency in which an airplane is disabled due to lack of spare parts, and therefore a quick action is required to achieve the missing part. AOG Applies to all aviation materials or spare parts. AOG personnel They are qualified personnel and are the ones who send the parts needed to repair the plane for service.
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