Research of "pass - not pass" method application the in the evaluation of small risks issues
The only JAR-AWO regulated method of probability quantitative evaluation of the requirements implementation to the automatic aircraft landing performance Category III, equals of the » 0.999999 (risk of 10 -6) is the method of ² pass - not pass ² based on the binomial distribution. The paper covers issues of the method accuracy, limiting its application in the issues of safety requirements assessment conformity.