GM1 21L.A.209(b) Approval of a repair design under a privilege

• ED Decision 2023/013/R found in: Initial Airworthiness and Environmental Protection (748/2012) Part-21 Part-21L (Jul 2024)

GM1 21L.A.209(b) Approval of a repair design under a privilege ED Decision 2023/013/R **REPAIR DESIGN APPROVAL BY A DESIGN ORGANISATION APPROVAL (DOA) HOLDER** (a)     Approval by a DOA holder The approval of repairs through the use of procedures agreed with EASA implies that the DOA holder issues the approval without EASA’s involvement. EASA will monitor the application of this procedure within the surveillance plan for the relevant organisation. When the organisation exercises this privilege, the repair release documentation should clearly show that the approval is issued on the basis of its privilege. (b)     Previously approved data for other applications When it is intended to use previously approved data for other applications, it is expected that an appropriately approved design organisation has checked the applicability and effectiveness of this data. After damage identification, if a repair solution exists in the available approved data, and if the application of this solution to the identified damage remains justified by the previously approved repair design (structural justifications still valid, possible airworthiness limitations unchanged), the solution may be considered approved and may be used again. (c)      Temporary repairs These are life-limited repairs to be removed and replaced by permanent repairs after a limited service period. These repairs should be classified under point [21L.A.203](#_DxCrossRefBm1649097728), and the service period should be defined when the temporary repair is approved. (d)     Fatigue and damage tolerance An approved design issued before the fatigue- and damage-tolerance evaluation has been completed should specify the limited service period. ##### GM1 21L.A.209(b) Approval of a repair design under a privilege *ED Decision 2023/013/R* **REPAIR DESIGN APPROVAL BY A DESIGN ORGANISATION APPROVAL (DOA) HOLDER** (a) Approval by a DOA holder The approval of repairs through the use of procedures agreed with EASA implies that the DOA holder issues the approval without EASA’s involvement. EASA will monitor the application of this procedure within the surveillance plan for the relevant organisation. When the organisation exercises this privilege, the repair release documentation should clearly show that the approval is issued on the basis of its privilege. (b) Previously approved data for other applications When it is intended to use previously approved data for other applications, it is expected that an appropriately approved design organisation has checked the applicability and effectiveness of this data. After damage identification, if a repair solution exists in the available approved data, and if the application of this solution to the identified damage remains justified by the previously approved repair design (structural justifications still valid, possible airworthiness limitations unchanged), the solution may be considered approved and may be used again. (c) Temporary repairs These are life-limited repairs to be removed and replaced by permanent repairs after a limited service period. These repairs should be classified under point [21L.A.203](#_DxCrossRefBm485231224), and the service period should be defined when the temporary repair is approved. (d) Fatigue and damage tolerance An approved design issued before the fatigue- and damage-tolerance evaluation has been completed should specify the limited service period.