A.188.8.131.52 Testing for a safe design. Tests and
demonstrations must be defined to validate selected safety features of the
system. Test or demonstrate safety critical equipment and procedures to
determine the mishap severity or to establish the margin of safety of the
design. Consider induced or simulated failures to demonstrate the failure
mode and acceptability of safety critical equipment. When it cannot be
analytically determined whether the corrective action taken will adequately
control a hazard, conduct safety tests to evaluate the effectiveness of the
controls. Where costs for safety testing would be prohibitive, safety
characteristics or procedures may be verified by engineering analyses,
analogy, laboratory test, functional mockups, or subscale/model simulation.
Integrate testing of safety systems into appropriate system test and
demonstration plans to the maximum extent possible.
A.184.108.40.206 Conducting safe testing. The program manager
must ensure that test teams are familiar with mishap risks of the system.
Test plans, procedures, and test results for all tests including design
verification, operational evaluation, production acceptance, and shelf-life
validation should be reviewed to ensure that:
a. Safety is adequately demonstrated.
b. The testing will be conducted in a safe manner.
c. All additional hazards introduced by testing procedures,
instrumentation, test hardware, and test environment are properly identified
A.220.127.116.11 Communication of new hazards identified during
testing. Testing organizations must ensure that hazards and safety
discrepancies discovered during testing are communicated to the program
manager and the developer.