항공기 수리 ․ 개조 승인체계에 대한 개선방안 연구

Abstract

In order to keep the initial airworthiness certificate, which has been issued by approval of type design and production, effective, the essential principle that an owner and/or operator must comply with during the aircraft's operational stage is the continuing airworthiness of aircraft. For this purpose, aircraft maintenance (including repairs and modifications) shall be carried out by the technical data approved by or acceptable to airworthiness authority. In particular, major repairs (restoration from major damage) and/or modifications (improvement of performance) that may occur during aircraft operations involve a change in the original approved type design. In which cases, the ICAO standards require that the design change be approved by the relevant airworthiness authority. Unlike these ICAO standards, the domestic aircraft repair and modification approval system focuses on the capability of maintenance organizations to carry out the associated repair and modification work rather than design data which is the key to approval of the repair and modification. it is obviously different from the concept of approval of repair and modification as defined by ICAO standards. Due to the rapid growth of the aircraft manufacturing and maintenance industries, advanced countries such as the United States have Bilateral Aviation Safety Agreement(BASA) with other countries for the purpose of minimizing their own waste of resources. The BASA is the recognition of the regulatory systems of the other countries in order to effectively fulfill their certification, approval and oversight responsibilities related to aeronautical product. Considering these trends, an internationally-recognized regulatory system is essential for the development of the domestic aviation maintenance industry. If the national regulatory system associated with airworthiness of aeronautical product. is inherently different from the ICAO standards, it may cause difficulties in concluding and expanding BASA with other countries. Thus, this paper, through the review of the applicable ICAO standards and document, regulatory requirement/guidelines of leading aviation authorities and comparative analysis with the domestic system, identified problems and proposed the direction for improvement of laws/administrative rules for domestic system for approval of repair and modification.