Aviation Safety: NASA's National Aviation Operations Monitoring Service Project Was Designed Appropriately, but Sampling and Other Issues Complicate Data Analysis Page: 3 of 100
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Contents
Letter
Scope and Methodology
Results in Brief
NAOMS Was Intended to Identify Accident Precursors and
Potential Safety Issues
NAOMS's Planning and Design Were Robust, but Implementation
Decisions Complicate Data Analysis
A New Survey Would Require Detailed Planning and Revisiting
Sampling Strategies
Concluding Observations
Agency Comments and Our EvaluationAppendix I Technical Issues Relating to NAOMS's Development
and Data 81
Appendix II Comments from the National Aeronautics and Space
Administration 90
Appendix III GAO Contacts and Staff Acknowledgments 92
Bibliography 93
Tables
Table 1: NAOMS Briefings, Presentations, Workshops, and Working
Group Meetings, 1997-2005 13
Table 2: Principles We Used to Assess the NAOMS Survey 24
Figures
Figure 1: NAOMS's Original Milestones, Fiscal Year 1997 to
Implementation as a Permanent Survey 12
Figure 2: NAOMS's Milestones for Fiscal Years 1997-2007, from
Development to Delivery to an Operating Organization 15
Figure 3: The Rationale for NAOMS's Questionnaire Structure 20GAO-09-112 Aviation Safety
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United States. Government Accountability Office. Aviation Safety: NASA's National Aviation Operations Monitoring Service Project Was Designed Appropriately, but Sampling and Other Issues Complicate Data Analysis, report, March 13, 2009; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc295634/m1/3/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.