Biographies - NTSB Staff
WILLIAM BRAMBLE, PH.D.
Dr. William Bramble is a senior human performance investigator with the NTSB. Since 2002 he has supported the investigation of many domestic and international aircraft accidents and authored papers on countermeasures for loss of control accidents. Previously, he was an NTSB transportation research analyst. Before joining the NTSB he worked as a human factors consultant and instructional technologist for FlightSafety International, developing instructional courseware and pilot pre-employment selection measures. Dr. Bramble holds B.S. and Ph.D. degrees in psychology from the University of Central Florida (with a specialization in human factors) and a private pilot certificate. In August 2015, he became a senior fellow of the Excellence in Government Fellows leadership program. He is a member of the Human Factors and Ergonomics Society and the Association of Aviation Psychologists.
Doug Brazy joined the NTSB in 1992 in the Office of Research and Engineering as a co-op student, and transitioned to an investigator in the Vehicle Recorder Division. In this position, he specialized in the analysis of cockpit voice recorders, flight data recorders, image photogrammetry, aircraft performance, and sound spectrum analysis. He joined the Office of Aviation Safety in 2014 as an air safety investigator in the NTSB's Eastern Region. He has a private pilot certificate and obtained a Bachelor of Science degree in Mechanical Engineering from the University of Alabama. In March 2015, he became a senior fellow of the Excellence in Government Fellows leadership program.
Paul Cox began with the NTSB in 1998 and is a senior air safety investigator with the NTSB's Eastern Region. As such, he has investigated over 500 accidents, including over 125 fatal accidents, many of which involved in-flight loss of control. He has also served as the U.S. Accredited Representative to numerous foreign fatal accidents involving helicopters and transport aircraft. Prior to the NTSB, Mr. Cox served 22 years in the U.S. Navy flying helicopters and turboprops. He obtained a Bachelor of Science in Oceanography at the U.S. Naval Academy and a Master of Science in Management degree from the Florida Institute of Technology. Since inflight loss of control was placed on the NTSB's Most Wanted List in 2015, Mr. Cox has served as the NTSB subject matter expert on the topic and has conducted extensive research and outreach. With about 5,000 hours of flight time, he holds an airline transport certificate with a Boeing 737 rating. He also owns a G-33 Bonanza and hopes to someday finally complete his perpetual Vans RV-8A project.
Mr. DeLisi has been with the National Transportation Safety Board since 1992 and was appointed the Director of the Office of Aviation Safety in 2012.
He began his career with the NTSB as an aircraft systems engineer in the Aviation Engineering Division, which is responsible for investigating the airworthiness of aircraft involved in major aviation accidents. During this time, he was an on-scene investigator for 20 major airline accidents and 6 international investigations. He authored 16 safety recommendation letters that have led to improvements on air carrier aircraft, such as: the B737, B757, B767, and A-320.
In 2000, Mr. DeLisi became chief of the Aviation Engineering Division. He also served as the Chief, Major Investigations Division and managed over a dozen major airline accident investigations, including the investigation of the Comair accident in Lexington, Kentucky. Later, as Deputy Director, he oversaw the investigations of the ditching of US Airways flight 1549 on the Hudson River and the Colgan Air accident in Clarence Center, New York.
Mr. DeLisi has presented technical papers at conferences sponsored by the American Institute of Aeronautics and Astronautics, the Flight Safety Foundation, and the International Aviation Safety Association and has been the Sigma Series Lecturer at the NASA Langley Research Center. He is a recipient of the NTSB’s Managing Director’s Award, which recognizes an outstanding achievement that contributed to or enhanced the management, leadership, or administration of the NTSB’s mission, and has been nominated twice for the NTSB’s Dr. John K. Lauber Science & Engineering Award for technical excellence in accident investigation.
Mr. DeLisi is a cum laude graduate of the University of Michigan with a degree in Aerospace Engineering and has done graduate work in Engineering Management at Washington University in St. Louis, Missouri. He also holds a private pilot certificate and has multiengine, instrument, and aerobatic flight experience. Prior to joining the NTSB, Mr. DeLisi spent 10 years as a Flight Test Engineer with McDonnell Douglas, where he was involved in flight test programs on the F-15 and F/A-18 aircraft.
KRISTI DUNKS, PH.D.
Dr. Kristi Dunks has been with the NTSB since 2003 and is currently a transportation safety analyst with the Office of Aviation Safety. In her work as an analyst, she manages the aviation safety improvements program, conducts research, and works as an advocate for the identification and resolution of safety issues identified during investigations. Prior to becoming an analyst, she worked as a senior air safety investigator and served as the investigator-in-charge as well as the airworthiness group chairman of numerous aircraft accidents. She obtained a Bachelor of Science in Aviation Operations from Westminster College, a Master of Aeronautical Science from Embry-Riddle Aeronautical University, and holds a doctorate in Technical Communication from Texas Tech University, where her research focused on government reports and effecting change in the aviation industry. In March 2015, she became a senior fellow of the Excellence in Government Fellows leadership program. Dr. Dunks is a commercial pilot for helicopters and airplanes, a flight instructor, and holds a mechanic certificate. She is an active pilot and owns a Super Cub.
NICHOLAS WEBSTER, MD, MPH
Dr. Nicholas Webster is an aerospace medicine physician who has served the NTSB for the past year as one of two medical officers. He currently works with investigators from all modes of transportation to identify problems and develop mitigation strategies for transportation medical issues. Before joining the NTSB, he was a Federal Aviation Administration research medical officer who helped develop and manage the FAA fatal accident medical case review program. In that role, he worked to identify medical hazards in fatal accidents and supported FAA and NTSB aviation accident investigators. He is a retired naval flight surgeon who earned a bachelor's degree from the University of Tennessee at Knoxville, a Master of Public Health degree from the Johns Hopkins University, and an MD from the University of Tennessee at Memphis.