What must be shown to obtain a Supplemental Type Certificate?

To obtain a Supplemental Type Certificate (STC), compliance with applicable airworthiness requirements is essential. An STC is necessary for modifying a type-certificated aircraft or its components, and demonstrating adherence to airworthiness standards assures that the changes made do not adversely affect the safety or operational capabilities of the aircraft. This requirement is derived from regulations set forth by aviation authorities, which ensure that any modifications meet established safety standards and do not compromise the integrity of the original type design.

Having point-to-point flight plans, commercial certification, or approval from a pilot's association does not directly relate to the actual process of obtaining an STC. While these elements may be relevant in various contexts within aviation operations, they do not satisfy the specific regulatory requirements focused on safety and airworthiness that are fundamental to STC approval.