26.309 Repair evaluation guidelines

• 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)

26.309 Repair evaluation guidelines 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 and for which the TC or restricted TC was issued prior to 11 January 2008, shall develop repair evaluation guidelines (REGs) to establish: (i) a process for conducting surveys of affected aeroplane that enables the identification and documentation of all existing repairs affecting the fatigue-critical structure identified in accordance with paragraph (a) of point [26.306](#_DxCrossRefBm881534088) and paragraph (a)(ii) of point [26.307](#_DxCrossRefBm881534086); (ii) a process that enables operators to obtain a DTI for repairs identified in accordance with paragraph (a)(i); (iii) an implementation schedule that provides time frames for conducting aeroplane surveys, obtaining DTIs and incorporating DTIs into the maintenance programme of the operator of the aeroplane. (b) The holder of a TC or a restricted TC shall submit the repair evaluation guidelines developed in accordance with paragraph (a) to the Agency before 26 February 2023, for approval. #### 26.309 Repair evaluation guidelines *Regulation (EU) 2024/2954* (a) 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, and for which the TC or restricted TC was issued before 11 January 2008, shall develop repair evaluation guidelines (REGs) to establish: (i) a process for conducting surveys of affected aeroplanes that enables the identification and documentation of all existing repairs affecting the fatigue-critical structures identified in accordance with point [26.306](#_DxCrossRefBm783605488)(a) and point [26.307](#_DxCrossRefBm783605486)(a)(ii); (ii) a process that enables operators and organisations responsible for the management of continuing airworthiness to obtain a DTI for repairs identified in accordance with point (i); (iii) an implementation schedule that provides time frames for conducting aeroplane surveys, obtaining DTIs and incorporating DTIs into the maintenance programme of the aeroplane. (b) The holder of a TC or a restricted TC shall submit the REGs developed in accordance with point (a) to the Agency before 26 February 2023, for approval.