Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"NTSB"”.
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An Analysis of Airport Surface Deviations using the Human Factors Analysis and Classification System (HFACS)
… and the National Transportation Safety Board (NTSB) database was performed to determine causal factors for airport surface deviations over a 12-year period, from January 1, 2001 through December 31, 2012. The Human Factors Analysis and Classification System was used as the framework to analyze …
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A Review of Air Medical Safety: 2005-2011
… of the risk from 2005 - 2011 by looking at NTSB data. Sixty-eight rotorcraft air medical incidents were discovered based on preset criteria, such as resulting injury or significant damage to aircraft, for severe air medical incidents. Six major concerns in air medical safety were researched …
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A new approach to modeling aviation accidents
… use National Transportation Safety Board (NTSB) accident reports and data. Unfortunately, while these studies easily identify the top types of accidents (e.g., inflight loss of control (LOC)), they usually cannot identify why these accidents are happening. Most NTSB narrative reports for GA …
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Prediction of Severity of Aviation Landing Accidents Using Support Vector Machine Models
… of the National Transportation Safety Board (NTSB) accident database, the NTSB accident reports, and the FAA’s Instrument Flight Procedure Gateway website. Four SVM models were developed in using the linear, polynomial, radial basis function (RBF), and sigmoid kernels for the severity of …
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Loss of Control In-Flight (LOC-I): A Mixed Methods Study of Voluntary Versus Mandatory Reports from the United States of America
… by the National Transportation Safety Board (NTSB). Established in 1976, the Air Safety Reporting System (ASRS) is a voluntary safety reporting (VSR) system administered by the National Aeronautics and Space Administration (NASA). Over 1.7 million ASRS reports have been processed to date. …
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An Analysis of Helicopter EMS Accidents using HFACS: 2000-2012
… 1980s, the National Transportation Safety Board (NTSB) observed a marked rise in aviation accidents involving ambulance helicopters. Since then it has been observed that there are a disproportionate number of accidents in HEMS flying compared to other types of flying, including fixed-wing EMS. …
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Death by Design: An Examination of Historically Black Colleges and Universities Intercollegiate Athletic Department Transportation Policies
… Results from the study found that despite the NTSB warnings against 15-passenger van use HBCU continue to use them. The study found 15-passenger vans were used by the following teams: baseball, golf, mens & women's soccer and volleyball teams. These results were equivalent to pervious studies …
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An Analytical Study of the Effects of Age and Experience on Flight Safety
… specialized aviation data banks; these include: NTSB, AOPA, FAA, and the COMSIS Research Corporation. The data were organized into groups according to the ages of the pilots-in-command responsible for the accidents. Groupings progress in five-year increments starting at 20-24, and ending with …
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Dynamic Simulation of General Aviation Cabin Environments and Occupant Restraint Systems
… the National Transportation Safety Board (NTSB) has concluded that aircraft cabin environments place the occupant at high risk of suffering severe injuries in an emergency crash situation. Studies of Federal Aviation Administration (FAA) seat tests were used to form the basis of a computer …
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Analysis of Fatal General Aviation Accidents Occurring from Loss of Control on Approach and Landing
… to the National Transportation Safety Board (NTSB), loss of control in-flight is the greatest cause of general aviation accidents. The purpose of this study was to determine the most frequently occurring probable causes and contributing factors from loss of control in-flight. This study used …
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An Archival Analysis of Stall Warning System Effectiveness During Airborne Icing Encounters
… and the National Transportation Safety Board (NTSB) accident databases, both covering the period January 1, 1988 to October 2, 2015.</p> <p>The CIRB model predicted that aircrew would experience more incorrect response outcomes in the face of missed stall warnings than with stall warning False …
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Use of Rounded Base Turns in General Aviation Traffic Patterns: A Quantitative Analysis
… by the National Transportation Safety Board (NTSB), with emphasis on low-altitude maneuvering. A possible technique to mitigate I-LOC is modification of the rectangular traffic pattern used by aircraft arriving and maneuvering within the airspace around an airport. The rectangular pattern is …
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Knowing when to stop : the investigation of Flight 191
… and at the end determine the probable cause. The NTSB spent six months investigating the crash of Flight 191. This is the story of how investigators pieced together the smoldering wreckage, wrestled with questions of personal error and accountability, dodged political and financial influences, and …
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Teamwork Turbulence: Lessons for Multi-Team Systems from a Decade of Aviation Accident Reports
… from the National Transportation Safety Board (NTSB) within the past decade, this research sought to uncover the underlying causal factors that contribute to aviation accidents within the last decade (i.e., 2014-2024) using the Human Factors Analysis and Classification System (HFACS; Wiegmann & …
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An Analysis of Helicopter Emergency Medical Services and Human Error Contributors to Accidents
… Data was collected through the review of NTSB accident reports of HEMS accidents. Instances of human error were identified and coded using the Human Factors Analysis and Classification System (HFACS). This study is a retrospective analysis of HEMS accidents. Analysis of types of errors …
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Pilot Acceptance of Personal, Wearable Fatigue Monitoring Technology: An Application of the Extended Technology Acceptance Model
… States National Transportation and Safety Board (NTSB) accident reports; however, the United States Code of Federal Regulations 14 CFR Part 117, Flight and Duty Limitations and Rest Requirements for Flight Crew Members, does not provide a tangible means of measuring fatigue for aircraft crew …
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Behavioral Traps in Flight Crew-Related 14 CFR Part 121 Airline Accidents
… 34 National Transportation Safety Board (NTSB) accident reports. Behavioral traps were found in all accidents with Loss of Situational Awareness and Neglect of Flight Planning, Preflight Inspections, and Checklists dominant. The SMEs were able to identify many pilot actions that were …
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Disaster relief: Fatugue and countermeasures
… \r\nThe National Transportation Safety Board (NTSB) has found that the incidence of fatigue is underestimated in virtually every transportation mode, because it is so hard to quantify and measure. Many accident investigations do not obtain the information necessary to determine the contribution …
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An Exploratory Study of General Aviation Visual to Instrument Meteorological Condition Contextual Factors
… in the National Transportation Safety Board (NTSB) online safety database. Significant relationships were identified among the contextual factors and pilot age, flight experience, weather, flight conditions, time of day, and certification level using point biserial and phi correlations. …
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ADS-B benefits to general aviation and barriers to implementation
… would be most beneficial, ten years' worth of NTSB mid-air collision reports were reviewed. Ten years of ASRS and NMACS near mid-air collision (MAC) reports were also reviewed. The analysis revealed that aircraft are most likely to encounter each other in the airport vicinity - specifically in …
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