Programmed Depot Maintenance Capacity Assessment Tool Workloads, Capacity, and Availability

by Loredo, Elvira N.; Pyles, Raymond A.; Snyder, Don

• ISBN13: 9780833040152
• ISBN10: 0833040154
• Format: Paperback
• Copyright: 2007-04-27
• Publisher: RAND Corporation

Summary

Aging U.S. Air Force fleets have deterioration problems, resulting in increased maintenance workloads. Programmed depot maintenance (PDM) is significant, requiring 2,000 to 50,000 labor hours and material. RAND developed the PDM Capacity Assessment Tool (PDMCAT), applied it to the KC-135 PDM process, with three alternative forecasts of future workload and two fleet-size scenarios, to inform aircraft availability and resource allocation decisions.

Table of Contents

Introduction	p. 1
Changing demands of PDM assessments	p. 1
Organization of this monograph	p. 2
A note about the data in this monograph	p. 3
Background and theory	p. 5
The PDM process	p. 5
Modeling the PDM process	p. 9
Using the model : obtaining relevant data and designing cases for assessment	p. 13
KC-135 PDMs have undergone recent changes	p. 13
Obtaining relevant data	p. 15
Designing cases	p. 26
Findings	p. 31
Estimated KC-135 work in process and historical values	p. 32
Comparing forecast to actual aircraft in PDM status	p. 32
Computing production and future induction values	p. 34
Forecasting and managing near-term KC-135 PDM work in process	p. 36
Workload management can mitigate the near-term availability shortfall	p. 38
Forecasting and managing long-term KC-135 PDM work in process	p. 39
Strategic planning for uncertain future workload growth	p. 42
Required obligation authority depends on workload forecast and management option	p. 43
AMC fleet-retention plan and workload forecast	p. 47
Conclusions	p. 53
Observations and conclusions about PDMCAT	p. 53
Different approaches to forecasting availability	p. 59
Extending BJB analysis to multiple-server cases	p. 73
Estimating parameters	p. 77
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