What should be done if a CDI finds a critical safety item unserviceable?

When a Collateral Duty Inspector (CDI) identifies a critical safety item as unserviceable, the appropriate response is to ground the aircraft or equipment until the issue is resolved. This approach prioritizes safety and compliance with regulatory requirements, as critical safety items are integral to the safe operation of the aircraft or equipment. Continuing with the inspection, notifying the pilot while permitting takeoff, or marking the item as a noted discrepancy without immediate action does not address the potential hazards associated with unserviceable critical components. Such practices could lead to safety risks, regulatory violations, or accidents. Grounding the aircraft ensures that corrective actions can be taken to restore the item to a serviceable condition before the aircraft is used, thereby safeguarding both personnel and equipment.