XF3 Retention Policy,
Abstract
In this report, we evaluated base retention policy for field-level reparable (XF3)) items. As a result, we recommend an alternative method of computing excesses that will increase item availability and operational capability. We analyzed the problem as two issues: partial excess (on-hand balance exceeds a positive demand level) and complete excess (on-hand balance and no demand level). We found, at one base, that 96% of the partial excess items were needed at that same base after they had been declared excess. In addition, 36% of complete excess items had subsequent demands. Currently demand levels for XF3 items are computed based on at most 12 months demand experience. We found that the number of demands for XF3 is erratic. Consequently, demand levels are erratic. We therefore recommend using at least 18 months of historical demand data in order to smooth erratic demand and accurately compute levels. We found two factors to be statistically significant for predicting an item's future demand: number of demands and the mission impact code. We recommend using specified retention periods based on the mission impact code for items. Those items with a higher mission impact code will be held for a longer period. We estimate using a longer retention period will increase aircraft mission capable hours by 60,000 annually.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1985
- Accession Number
- ADA158916
Entities
People
- D. J. Blazer
- M. P. Ham
- William Faulkner