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An Examination of Aviation Accidents Associated with Turbulence, Wind Shear and Thunderstorm
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Author and Affiliation:
Evans, Joni K.(Analytical Mechanics Associates, Inc., Hampton, VA, United States)
Abstract: The focal point of the study reported here was the definition and examination of turbulence, wind shear and thunderstorm in relation to aviation accidents. NASA project management desired this information regarding distinct subgroups of atmospheric hazards, in order to better focus their research portfolio. A seven category expansion of Kaplan's turbulence categories was developed, which included wake turbulence, mountain wave turbulence, clear air turbulence, cloud turbulence, convective turbulence, thunderstorm without mention of turbulence, and low altitude wind shear, microburst or turbulence (with no mention of thunderstorms).More than 800 accidents from flights based in the United States during 1987-2008 were selected from a National Transportation Safety Board (NTSB) database. Accidents were selected for inclusion in this study if turbulence, thunderstorm, wind shear or microburst was considered either a cause or a factor in the accident report, and each accident was assigned to only one hazard category. This report summarizes the differences between the categories in terms of factors such as flight operations category, aircraft engine type, the accident's geographic location and time of year, degree of injury to aircraft occupants, aircraft damage, age and certification of the pilot and the phase of flight at the time of the accident.
Publication Date: May 01, 2013
Document ID:
20130013459
(Acquired May 17, 2013)
Subject Category: AIR TRANSPORTATION AND SAFETY
Report/Patent Number: NASA/CR-2013-217989, NF1676L-16584
Document Type: Technical Report
Contract/Grant/Task Num: NNL12AA09C; WBS 284848.02.01.07.04
Financial Sponsor: NASA Langley Research Center; Hampton, VA, United States
Organization Source: Analytical Mechanics Associates, Inc.; Hampton, VA, United States
Description: 42p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution under U.S. Government purpose rights; under NASA contract NNL12AA09C
NASA Terms: AIRCRAFT ACCIDENTS; ATMOSPHERIC EFFECTS; ATMOSPHERIC TURBULENCE; CLEAR AIR TURBULENCE; CONVECTION; DATA BASES; FLIGHT OPERATIONS; MOUNTAINS; SAFETY MANAGEMENT; THUNDERSTORMS; UNITED STATES; WAKES; WIND SHEAR
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