Publication Date: 8/17/2026 Share Print

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P/N Control - Proration Set Up

A Prorated Part is a part whose life will be based on a prorated standard because it will be used in different service applications. This part must be set up as a prorated part in the P/N Master.

A prorated calculation of the life consumed (i.e. sum of the fractions of accrued life) during the part's previous service applications is used to determine the remaining life in its current service application. A part can be used in multiple service applications throughout its life (i.e. installed on different aircraft types/series, or in different assemblies) and therefore it will have different life limits (i.e. P/N Controls) for each of its service applications. These parts are set-up as prorated parts in the P/N Master.

The prorated calculation is used only in the Planning module and only for a parts that are currently in service on an aircraft. It is not used for parts that are in Inventory.

See Also

P/N Control - Proration Process

Proration Install Scenario

P/N Control Authorization

Top of Page Publication Date: 8/17/2026 Share Print