Aircraft Flight Operation Regulations Article 140

The operator shall establish a maintenance organization to maintain airworthy condition of aircraft, such maintenance shall be approved by CAA.The operator shall ensure competent person to perform maintenance, have the necessary technical data, equipment, tools and material to perform the work for which it is approved. Storage facilities shall be provided for parts, equipment, tools and material. Storage conditions shall be such as to provide security and prevent deterioration of and damage to stored items.
中文原文 航空器飛航作業管理規則第140條
航空器使用人應設專責維護組織,以維護其航空器之適航狀況,並於報請民航局檢定合格後,始得從事維護工作。
航空器使用人應確保從事維護工作時備有適職之人員、必要之技術資料、裝備、工具、材料、適當之維護設施、儲存設施及環境,始得從事經核准之維護工作。
儲存設施應提供安全防護,以防止所儲存之備用零件、裝備、工具及器材產生變質或損壞情況。

English translation for reference only; the Chinese text prevails. Not legal advice.