ED Decision 2023/013/R
GENERAL
The term ânovel or unusual design featuresâ should be judged in view of the applicable certification basis for a particular product. A design feature, in particular, should be judged to be a ânovel or unusual design featureâ when the certification basis does not sufficiently cover it.
The term âunsafe conditionâ is used with the same meaning as described in AMC1Â 21L.B.23(b) âAirworthiness directivesâ.
The term ânewly identified hazardsâ is intended to address new risks that may be recognised in the design (e.g. questionable features) or its operational characteristics (e.g. volcanic ash) for which there is not yet enough in-service experience.
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