Effect of Environments on EWIS Failure Rate Estimate

Failure rate estimation of wires in electrical wire interconnect system (EWIS) is virtual to aircraft safety assessment for lack of large realistic data. Using some environment, we can estimate the relative failure rate through the help of experts’ experiment, and then get the real failure rate for wires. To analysis the effect of environment on EWIS failure rate, we compared the relative failure rate for different environment groups. The result of comparisons shows that non-realistic failure rates may improve the estimate conservative of relative EWIS failure rate.