Regulations of Repair Station Certification and Management for Aviation Products, Appliances and Parts Article 21
The privileges of a certificated repair station may—1) Perform maintenance, preventive maintenance, or alterations in accordance with Regulations of Airworthiness and Maintenance Management for Aviation Products, Appliances and Parts on any article for which it is rated and within the limitations in its operations specifications.2) Arrange for another person to perform the maintenance, preventive maintenance, or alterations of any article for which the certificated repair station is rated. If that person is not certificated under this regulation, the certificated repair station must ensure that the noncertificated person follows a quality control system equivalent to the system followed by the certificated repair station.3) Approve for return to service any article for which it is rated after it has performed maintenance, preventive maintenance, or an alteration in accordance with Regulations of Airworthiness and Maintenance Management for Aviation Products, Appliances and Parts.The limitations of a certificated repair station :1) A certificated repair station may not maintain or alter any article for which it is not rated, and may not maintain or alter any article for which it is rated if it requires special technical data, equipment, or facilities that are not available to it.2) A certificated repair station may not approve for return to service.a) Any article unless the maintenance, preventive maintenance, or alteration was performed in accordance with the applicable approved technical data or data acceptable to the CAA.b) Any article after a major repair or major alteration unless the major repair or major alteration was performed in accordance with applicable approved technical data.
中文原文 航空產品與其各項裝備及零組件維修廠設立檢定管理規則第21條
維修廠得行使下列權利：
一、在檢定證書及營運規範權限下，依航空產品與其各項裝備及零組件適航維修管理規則，執行維修或預防性維修航空產品與其各項裝備及零組件。
二、得依核可之檢定類別委託支援廠商執行維修或預防性維修航空產品與其各項裝備及零組件；維修廠應確保未經本規則檢定合格之支援廠商，遵照等同於維修廠之品質管制系統執行工作。
三、在檢定證書及營運規範權限下，依航空產品與其各項裝備及零組件適航維修管理規則，於執行航空產品與其各項裝備及零組件維修或預防性維修後，核准其恢復可用。
維修廠受下列限制：
一、不得維修未經核可檢定類別之航空產品與其各項裝備及零組件，或於缺乏所需之特種技術文件、裝備或設施下，執行維修在核可檢定類別之航空產品與其各項裝備及零組件。
二、除下列情況外，不得核准航空產品與其各項裝備及零組件恢復可用：
（一）航空產品與其各項裝備及零組件已依核准之適用技術文件或經民航局備查之技術文件，完成維修或預防性維修工作。
（二）航空產品與其各項裝備及零組件已依核准之適用技術文件，完成大修理或大改裝工作。
一、在檢定證書及營運規範權限下，依航空產品與其各項裝備及零組件適航維修管理規則，執行維修或預防性維修航空產品與其各項裝備及零組件。
二、得依核可之檢定類別委託支援廠商執行維修或預防性維修航空產品與其各項裝備及零組件；維修廠應確保未經本規則檢定合格之支援廠商，遵照等同於維修廠之品質管制系統執行工作。
三、在檢定證書及營運規範權限下，依航空產品與其各項裝備及零組件適航維修管理規則，於執行航空產品與其各項裝備及零組件維修或預防性維修後，核准其恢復可用。
維修廠受下列限制：
一、不得維修未經核可檢定類別之航空產品與其各項裝備及零組件，或於缺乏所需之特種技術文件、裝備或設施下，執行維修在核可檢定類別之航空產品與其各項裝備及零組件。
二、除下列情況外，不得核准航空產品與其各項裝備及零組件恢復可用：
（一）航空產品與其各項裝備及零組件已依核准之適用技術文件或經民航局備查之技術文件，完成維修或預防性維修工作。
（二）航空產品與其各項裝備及零組件已依核准之適用技術文件，完成大修理或大改裝工作。