26.308 Damage tolerance data for existing repairs to fatigue-critical structure

• Regulation (EU) 2020/1159 found in: CS-26 Additional Airworthiness Specifications for Operations (No 2015/640) Part-26 (Mar 2023)
• Regulation (EU) 2024/2954 found in: CS-26 Additional Airworthiness Specifications for Operations (Part-26) (Oct 2025)

26.308 Damage tolerance data for existing repairs to fatigue-critical structure Regulation (EU) 2020/1159 (a) A holder of a type-certificate (TC) or restricted TC for a turbine-powered large aeroplane certified on or after 1 January 1958 certified to carry 30 passengers or more, or with a payload capacity of 3 402 kg (7 500 lbs) or more, for published repairs existing on 26 February 2021 shall: (i) review the repair data and identify each repair specified in the data that affects the fatigue-critical baseline structure and the fatigue-critical modified structure identified in accordance with paragraph (a) of point [26.306](#_DxCrossRefBm881534088) and paragraph (a)(ii) of point [26.307](#_DxCrossRefBm881534086); (ii) perform a damage tolerance evaluation for each repair identified in accordance with paragraph (a)(i), unless previously done. (b) The holder of a type-certificate (TC) or restricted TC shall submit the damage tolerance data, including DTI, resulting from the evaluation performed in accordance with paragraph (a)(ii) to the Agency before 26 May 2022, for approval, unless already approved in accordance with point 21.A.435(b)(2) of Annex I (Part 21) to Regulation (EU) No 748/2012 before 26 August 2022. #### 26.308 Damage tolerance data for existing repairs to fatigue-critical structure *Regulation (EU) 2024/2954* (a) holder of a TC or a restricted TC for a large aeroplane certified on or after 1 January 1958 and certified to carry 30 passengers or more, or with a payload capacity of 3 402 kg (7 500 lb) or more, for published repairs existing on 26 February 2021 shall: (i) review the repair data and identify each repair specified in the data that affects the FCBS and the FCMS identified in accordance with point [26.306](#_DxCrossRefBm783605488)(a) and point [26.307](#_DxCrossRefBm783605486)(a)(ii); (ii) perform a damage tolerance evaluation for each repair identified in accordance with point (i), unless previously performed. (b) The holder of a TC or a restricted TC shall submit the damage tolerance data, including the damage tolerance inspections (DTI), resulting from the evaluation performed in accordance with point (a)(ii) to the Agency before 26 May 2022, for approval, unless it is already approved in accordance with point 21.A.435(b)(2) of Annex I (Part 21) to [Regulation (EU) No 748/2012](https://eur-lex.europa.eu/eli/reg/2012/748/oj/eng) before 26 August 2022.