Regulations of Airworthiness and Maintenance Management for Aviation Products, Appliances and Parts Article 19
Aircraft’s owner or the operator who hold the Certificate of Airworthiness is vested with the responsibility of the proper maintenance of the aircraft and must comply with the requirements in performing checks and inspections before putting the aircraft into operation and maintain it in airworthy and safe operating conditions.The aircraft is considered to be unairworthy and not safe to operate when one of the following conditions occurs:1.Aircraft is found not to meet the initial airworthiness standards after the inspections by the CAA or its designated organization or agency.2.Aircraft is unable to be operated safely due to the revelations that owner or the operator do not comply with the requirements to perform proper maintenance.3.Aircraft is unable to be operated safely due to the revelations that owner or the operator do not comply with Airworthiness Directives published by the CAA, the Civil Aviation Authorities of State of Designor the State of Design of Modification.4.Purpose of usage, performance, characteristics of aircraft is changed by owner or the operator without the approval from the CAA.5.Aircraft is, except for maintenance purposes, grounded for more than 90 consecutive days.Owner or operator shall prevent the aircraft from operation when it is considered to be unairworthy and not safe to operate.For those who violate aforementioned provision, CAA shall revoke its Certificate of Airworthiness.
中文原文 航空產品與其各項裝備及零組件適航維修管理規則第19條
領有適航證書之航空器，其所有人或使用人應對航空器為妥善之維修，並應於飛航前確遵規定施行檢查，保持其適航安全條件。
航空器有下列情事之一者，為不合於適航安全條件：
一、經民航局或委託之機關、團體檢查認定不符合原檢定時之適航標準。
二、不依規定妥善維修，致航空器不能安全飛航。
三、逾期執行或未執行民航局、原設計國或改裝設計核准國民航主管機關通告之適航指令。
四、未經民航局核准，自行改變航空器用途、性能、特性。
五、連續停用逾九十日。
但因維修者，不在此限。
航空器之維護狀況不合於適航安全條件者，航空器所有人或使用人應停止該航空器之飛航。
違反前項規定者，由民航局依民用航空法廢止其適航證書。
航空器有下列情事之一者，為不合於適航安全條件：
一、經民航局或委託之機關、團體檢查認定不符合原檢定時之適航標準。
二、不依規定妥善維修，致航空器不能安全飛航。
三、逾期執行或未執行民航局、原設計國或改裝設計核准國民航主管機關通告之適航指令。
四、未經民航局核准，自行改變航空器用途、性能、特性。
五、連續停用逾九十日。
但因維修者，不在此限。
航空器之維護狀況不合於適航安全條件者，航空器所有人或使用人應停止該航空器之飛航。
違反前項規定者，由民航局依民用航空法廢止其適航證書。