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Causes of aircraft electrical failures

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2 Author(s)
Galler, D. ; Failure Anal. Associates, Inc., Westborough, MA, USA ; Slenski, G.

The results of a survey of data on failures of aircraft electronic and electrical components that was conducted to identify problematic components are reported. The motivation for the work was to determine priorities for future work on the development of accident investigation techniques for aircraft electrical components. The primary source of data was the Airforce Mishap Database, which is maintained by the Directorate of Aerospace Safety at Norton Air Force Base. Published data from the Air Force Avionics Integrity Program (AVIP) and Hughes Aircraft were also reviewed. Statistical data from these three sources are presented. Two major conclusions are that problems with interconnections are major contributors to aircraft electrical equipment failures, and that environmental factors, especially corrosion, are significant contributors to connector problems.<>

Published in:

Aerospace and Electronic Systems Magazine, IEEE  (Volume:6 ,  Issue: 8 )