Use this activity to add a new Decision or Action to perform through FMECA Analysis. A Decision determines the action needed to mitigate the functional failures of the chosen Item Class. This process involves selecting the appropriate maintenance actions to address specific Failure Modes. Maintenance actions may include preventive maintenance, corrective actions, or allowing the equipment to run to failure, depending on the nature and severity of the failure mode.
To define a new Decision, start by selecting the appropriate options from the drop-down for Decision which was defined in FMECA Decisions Basic Data page. Optionally, provide a Reasoning to describe the rationale behind the chosen Decision or Action. Then select the appropriate Task Template that suits the maintenance action. The Task Template defines the work list, materials, and resources used to perform the maintenance action to mitigate the failure.
A previously existing Work Task Template or a newly created Work Task Template at the Functional Failure mode level can be selected from the Task Template drop-down. The Task Template Revision field fills in by default when the Task Template field updates.
Once a FMECA is Prepared, Published, and Reviewed, it identifies various action types in the Decisions and Actions tab based on the identified failure modes. These include Preventive, Corrective, Run-to-Failure, Spare Part Management, Documentation, Training, Redesign, and Predictive.
Note: A Decision can be a simple action chosen without defining other fields. For example, if the action is a documentation update, there is no need to fill in the other fields.
Next, fill in the appropriate Cause defined in the basic data, which determines the cause of the functional failure handled by this Decision or Action.
If the Decision involves performing a maintenance action (Preventive, Corrective, Run to Failure, Spare Part Management, Documentation, Training, Redesign or Predictive), select it from the Action Type drop-down.
The Cost and Duration fields can be manually entered when no Task Template is selected. If a Task Template is selected, the Duration is automatically fetched from the template and both fields become non-editable.
Select the appropriate values for Impact Severity, Impact Probability, and Impact Detectability from the respective drop-downs to assess the risk associated with the Decision. Based on these values, the New RPN (Risk Priority Number) is calculated, representing the revised risk after the Decision or Action is applied.
When a decision is selected with the Action Type Spare Part Management, Documentation, or Training, the New Maintenance Change Request command will become available. This allows the creation of a maintenance change request directly from the FMECA decision to manage non-work-order-based improvements identified during the analysis.
When a decision with the Action Type set to Redesign, Corrective or Run-to-Failure is selected, the Create Work Order option will appear. This is because both action types require a work order to carry out the necessary changes or corrective actions as part of the maintenance plan.
When a decision is selected with the Action Type Predictive, multiple commands are available. The user can create a New Maintenance Change Request, configure a New Asset Anomaly Configuration, or Create Work Order, depending on how the predictive strategy should be implemented and executed.
When a decision with the Action Type set to Preventive is selected, the Create PM Action button will appear. When you click this button, the New PM Actions from FMECA page opens on the right side of the screen, and the Trigger Type should be visible with the possible values "Calendar", "Condition",and "Event".
Note: When Trigger Type "Condition" is selected, the Performed Value Based field defaults to "No." However, if the Parameter Type is selected as "Accumulated" from the drop-down, the Performed Value Based drop-down will be enabled, allowing the value to be changed to either "Yes" or "No."
If a new Decision is created with the same Trigger Type and Action Type that already exists, an error will be raised: "Same trigger type and action type combination cannot be added as Decision."
If a new Decision is created with the Run to Failure Action Type for the second time, an error will be raised: "Run to Failure Action Type Already Exists."
For example, for a crane with a Failure Mode of reduced trolley speed, choose "Regular lubrication maintenance" as the Decision and "WTT 01" as the Task Template. The Task Template Revision (Rev) field auto-fills when the Task Template field is updated, indicating the current revision of the selected Task Template. Enter the cause of the Failure Mode in the Cause field, for example, "Insufficient Lubrication in Trolley Motor Bearings"
Select the type of action to be taken from the Action Type drop-down if it is a maintenance action. Select the relevant parameters according to the action type.
As a result of this activity, a new Decision or an Action is created.