4.5 Significant Item Search

The Significant Item Search tab enables users to identify and select Potential Maintenance Significant Items (MSI). It allows choosing a desired Top Level item with an appropriate Indenture Limit to narrow the search scope. The user can then apply filter thresholds based on Reliability, Availability, Item Criticality, and Failure Criticality metrics to determine candidates for Potential MSIs.

By default, the Top Level item is set as the system. All MADE system model items will be present in the Maintenance Significant Item Search Results table if filter settings are not added. The table column visibility can be configured to display Item Numbers, LCN, Risk, Severity, Reliability, and Availability based on relevance to the selection/search process.

After MSIs are determined, selecting the Add button will add the chosen item into the Potential Maintenance Significant Items table for further assessment in the Functional Failure Analysis tab (Figure 39).

4.5.1 Basic (Search Settings)

To change the Top Level

1. Navigate to the Basic section (Figure 40)
2. Click to configure the Top Level item
3. Select the desired Indenture Limit

To set Filter Settings

1. Navigate to Filter Settings
2. Under the Filter dropdown menu, choose from the following options:
   • Reliability
   • Availability
   • Item Criticality
   • Failure Criticality
3. Click the Add icon

Note:

• Multiple filters can be added
• Filters are reset when the analysis is reopened

To clear Filter settings

• Select a filter and press the Remove icon
• Or select Clear All to clear all applied filters

4.5.1.1 Search Filters

Reliability:

• Enter a Reliability Threshold when Reliability filter is set
• Or use the slider to select the Reliability Threshold (Figure 41)

Availability:

• Enter an Availability Threshold when Availability filter is set
• Or use the slider to select the Availability Threshold

Item Criticality:

• Select the checkbox to enable the appropriate criticality threshold (multiple selections allowed) (Figure 42)

Failure Criticality (MIL-STD-1629A) (Figure 43):

• Select the Severity Classification checkbox to set a threshold from the dropdown menu
• Select the Item Criticality Number checkbox to set a threshold

Failure Criticality (MIL-STD-882E) (Figure 44):

• Select the Severity Category checkbox to set a threshold from the dropdown menu
• Select the RAC checkbox to set a threshold

Failure Criticality (RPN, Custom) (Figure 45):

• Select the Severity Classification checkbox to set a threshold from the dropdown menu
• Select the Item Criticality Number checkbox to set a threshold

4.5.2 Potential Maintenance Significant Items

The Maintenance Significant Items Search Results section displays all items available in the system that are applicable to the current analysis. By default, the list includes every relevant item; applying search filters updates the results based on the specified criteria. From the refined list, users can review and select the Potential MSIs for inclusion in the RCM analysis, ensuring that only the selected items are considered as part of the analysis.

To select items as Potential MSI

1. Select an item in the Maintainable Significant Item Search Results section (Figure 46)
2. Click Add, or drag and drop, into the Potential Maintenance Significant Items section (Figure 47)
   • Multiple items can be selected by using the Shift or Ctrl keys

To remove items from further analysis

1. Select an item in the Potential Maintenance Significant Items section
2. Click Remove

To continue the analysis, select the Mission Context tab to define the operating context and performance standards of the Potential Maintenance Significant Items.