§29.602 Critical parts

(a) Critical part - A critical part is a part, the failure of which could have a catastrophic effect upon the rotorcraft, and for which critical characteristics have been identified which m ust be controlled to ensure the required level of integrity. (b) If the ty pe design includes critical parts, a critical parts list shall be established. Procedures shall be established to define the critical design characteristics, identify pro cesses that affect those characteristics, and identify the design change and process change controls necessary for showing compliance with the quality assurance requirem ents of Part-21.