Implementing an avionics integrity program-a case study

The methods, procedures, issues, and lessons learned from the implementation of an avionics integrity program (AVIP) on the global positioning system (GPS) digital analog converter program are reviewed. The integrity process required a change to conventional reliability design. The tasks required on the program provide an emphasis on environment and use of the equipment, understanding of parts/materials life capability, durability assessment of a design, corrosion control, and life-based maintenance. The avionic integrity approach required a cultural change in design, and basic shifts in reliability and maintainability approaches. The basic tools and methodologies required to implement the various AVIP program tasks already exist. The disciplined participation of the various design functions necessary to conduct the effort are discussed