CS 26.305(a) and (c) Validity of the continuing structural integrity programme

• ED Decision 2020/023/R found in: CS-26 Additional Airworthiness Specifications for Operations (No 2015/640) Part-26 (Mar 2023)

CS 26.305(a) and (c) Validity of the continuing structural integrity programme ED Decision 2020/023/R Compliance with points [26.305(a) and 26.305(c)](#_DxCrossRefBm881534109) of Part-26 is demonstrated by complying with the following: (a) Except as provided in point (h) of this CS, a process exists, and a report is submitted to EASA that describes the process and how it is implemented; (b) The process is either continuous with each service finding, or is a regular review following several findings, or a combination of both; (c) The process includes a plan to audit and report to EASA the effectiveness of the continuing structural integrity programme, including the continuing validity of the assumptions upon which it is based, prior to reaching any significant point in the life of the aeroplane; (d) The process includes criteria for summarising findings of fatigue, environmental or accidental damage and their causes, and recording them in a way that allows any potential interaction to be evaluated; (e) The process includes criteria to assess and record the relevance of each potential contributing factor to the finding, including operational usage, fatigue load spectra, environmental conditions, material properties, manufacturing processes and the fatigue and damage tolerance analytical methods of analysis and their implementation; (f) The process includes criteria for establishing and revising sampling programmes to supplement the inspections and other procedures established in compliance with the applicable fatigue and damage tolerance requirements; and (g) The process includes criteria for establishing when structures should be modified, or the inspection programme revised, in the light of in-service damage findings; (h) Sunset criteria: The extent to which the above elements of the process require definition may be tailored to the size of the fleet and its expected useful remaining life. (i) Additional means of compliance may be found in Paragraph 5 of and Appendix 5 to AMC 20-20A. [Issue: 26/3]