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2 Acknowledgments This handbook was produced by the Air Force Logistics Management Agency foruse in the Air Force maintenance community. It updates the srcinal handbook produced in 2001. The project was srcinally commissioned by the Director of Maintenance, Deputy Chief of Staff, Installations, Logistics, and Mission Support,United States Air Force. Specific questions concerning the content should beaddressed to Air Force Logistics Management Agency, Studies Divison.Air Force Logistics Management Agency501 Ward StreetMaxwell AFB, Gunter Annex, Alabama 36114-3236DSN: 596-4511Commercial: (334) 416-4511James C. Rainey, Editor-in-Chief Cindy Young, EditorR. Dean Golden, DPA AFLMA Project Managers Frank Iubelt, First Lieutenant, USAFAnthony F. Antoline, Major, USAF Graphics and Layout James C. Rainey The Editors, Air Force Journal of Logistics 20 March 2009 Air Force Maintenance Metrics3 R. Dean Golden, DPADirectorAir Force Logistics Management Agency Foreword A s the Air Force defines its future, it is critical that we continueto evaluate our performance in an effort to improve ourefficiency and effectiveness. An essential element for thisevaluation is metrics. Metrics is not a bad word, but a tool for gaugingwhere your focus, as a maintainer, needs to be directed. Good metricsare measurable and can be mapped to goals, both strategic and tactical.It is crucial for us to understand how our processes are impacting thegreater mission. This handbook will aide you in that endeavor. Criticalthinkers are needed on the flight line. Learn, think, understand is keybut your action is required to make the mission happen. As the AirForce’s enterprise focus continues to develop, the way we evaluateourselves will change. Repair Network Transformation is defining ournew maintenance processes. The Expeditionary Combat SupportSystem will give maintenance leadership at all levels visibility overlogistics processes. Its goal is to improve data quality, informationtimeliness, and availability. This will impact Air Force leaders’decisions, and your decisions.Use this handbook to learnhow we conduct businessnow. The Air ForceLogistics ManagementAgency will continueto provide knowledgefor tomorrow’smaintenance leaders. 4 Special Interest UnderstandingMetrics. . . . . . . . . . . . . 13Key Metrics Table. . . . . . . . . . 25-27Maintenance MetricsFormula Index. . . . . . . . . . . . . 30Maintenance MetricsFormulas andDiscussion. . . . . . . . . . 31-52 Table of Contents Foreword. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Maintenance Metics Basics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Assessing the Health of the Fleet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23The Metrics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Helpful Hints for Data Investigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57References and Supporting Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
