A Safety Hazard Analysis Method for Category-I Ground Based Augmentation System

Jason Burns, Dieter Buenter and Eric Altshuler

Abstract:	Each piece of equipment operated within the U.S. National Airspace (NAS) must be designed within certain specifications and safety guidelines. These vary depending on the type of equipment and its desired use. In the case of GBAS, the FAA has drafted the non-federal specification FAA-E-AJW44-2973A which outlines the minimum requirements for the system’s ground facility. Over the years, the FAA office of Navigation Services has developed certain processes for evaluating candidate GPS based systems for safety, security, reliability and operational performance. One part of this process is the evaluation of risk posed by system failures or other conditions that may lead to Hazardous Misleading Information (HMI) being introduced into the system. An analysis of HMI impact and the conditions that cause them are necessary to determine their effects on National Airspace (NAS) and establish any necessary operational restrictions. This paper will provide an introduction to this process. We will also discuss how this process has been applied to Category-I GBAS and may be applied to future proposals. Most concepts presented in this paper are based on work done by the GBAS community at large in cooperation with the FAA.
Published in:	Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007) September 25 - 28, 2007 Fort Worth Convention Center Fort Worth, TX
Pages:	395 - 403
Cite this article:	Burns, Jason, Buenter, Dieter, Altshuler, Eric, "A Safety Hazard Analysis Method for Category-I Ground Based Augmentation System," Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007), Fort Worth, TX, September 2007, pp. 395-403.
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