29 Aug 2019 Official Publication Part 21 - Airworthiness and Environmental Certification DownloadsRead More Downloads [pdf] AMC and GM to Part 21 — Issue 2, Amendment 9 The file was replaced on 06/12/2019. The corrections are highlighted with yellow. Read More AMC file [pdf] AMC & GM to Part 21 — Issue 2, Amendment 9 The file was replaced on 06/12/2019. The corrections are highlighted with yellow. Related ED Decision ED Decision 2019/018/R Explanatory Note [pdf] Explanatory Note to ED Decision 2019/018/R