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Critical Parts

Critical parts are those whose failure results in a direct hazardous effect. A hazardous effect prevents continued safe flight and landing. Each product has these parts. Their designs have key attributes that require controls to protect their integrity. Life-limited parts are also critical when their failure especially from exceeding their operational limits or fixed replacement intervals cause direct hazardous effects. However, not all critical parts are life-limited nor are all life-limited parts critical.

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