Analysis of Churn and Excess Material at the Pearl Harbor Naval Shipyard
Abstract
For a Naval Shipyard, the amount of material ordered after beginning an availability (churn) and the amount of material ordered but not used (excess) are key performance indicators. Pearl Harbor Naval Shipyard's metrics indicate that an average of 50% of material ordered during an availability is ordered after the start of the availability and that 15% of material is excess. The NAVSEA goal for both metrics is 5%. The authors investigated the causes of high rates of material churn and excess at Pearl Harbor Naval Shipyard and what could be done to reduce or alleviate them. In determining the solution to the research questions, several root causes were identified through field interviews with shipyard personnel and an examination of historical records and various command directives. To test the validity of these root causes current practices were evaluated against generally accepted principles of supply chain management and operations management. The field interviews and data collection yielded considerable insight into possible causes of churn and excess. However, due to time and manpower limitations, the study focused on what the authors considered to be the most significant contributors to the problems: requisition lead-time, requisition maintenance, forecasting techniques, configuration management (equipment validation), accountability, and incentives. (1 table, 3 figures, 13 refs.)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2003
- Accession Number
- ADA420363
Entities
People
- Anthony Hunt
- Kevin Cheshure
- Lawrence Bangert
Organizations
- Naval Postgraduate School