AMC2 ATS.OR.210(a) Safety criteria
ED
Decision 2017/001/R
OTHER
MEASURES RELATED TO SAFETY RISKS — PROXIES
Proxies
for safety risk, used as safety criteria for those parts of the functional
system affected by the change, can only be employed when:
(a) a justifiable causal relationship exists
between the proxy and the harmful effect, e.g. proxy increase/decrease causes
risk increase/decrease;
(b) a proxy is sufficiently isolated from
other proxies to be treated independently; and
(c) the proxy is measurable, quantitatively or qualitatively, to an adequate degree of
certainty.
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