CS 26.333 and 26.334 Damage tolerance data for STCs, other changes and repairs to those STCs and changes

Compliance with the fatigue and damage tolerance evaluation required by points 26.333(a)(i) or 26.334(a)(i) of Part-26 is demonstrated by complying with CS 25.571 Amendment 19, or subsequent amendment, or with the following:

(a)The fatigue and damage tolerance evaluation is accomplished in accordance with the damage tolerance requirements of the applicable certification basis or a later amendment, except as provided in point (b) of this CS.

(b)For aeroplanes certified on the basis of JAR-25 Change 6 or 14 CFR §25.571 Amendment 44 or equivalent, or an earlier amendment, the fatigue and damage tolerance evaluation of the change or repair is accomplished in accordance with JAR-25 Change 7 or 14 CFR §25.571 Amendment 45, or equivalent, or later amendments, except that residual strength loads may be based upon the fail-safe load cases of the original certification basis.

[Issue: 26/3]