AC 120-102B replaces AC 120-102A and modernizes the FAA’s operator guidance for EWIS ICA incorporation by tightening the legal framing of AC usage, updating oversight terminology and contact pathways, and most importantly for certification-sensitive programs, clarifying the Appendix H scope of § 25.1729 EWIS ICA (H25.4 and H25.5) and surfacing “mandatory replacement times” as an explicit element of the § 25.1729 context. In this article, we discuss the updated revision of AC 120-102, the changes made between revisions and the implications/impacts these changes have on ICA documentation. Read more