AIRCRAFT AVIONICS SYSTEMS.

SEC. 394. SECURING AIRCRAFT AVIONICS SYSTEMS. Section 506(a) of the FAA Reauthorization Act of 2018 (49 U.S.C. 44704 note) is amended— (1) in the matter preceding paragraph (1) by striking “consider, where appropriate, revising” and inserting “revise, as appropriate, existing”; (2) in paragraph (1) by striking “and” at the end; (3) in paragraph (2) by striking the period at the end and inserting “; and”; and (4) by adding at the end the following: “(3) to establish a process and timeline by which software-based systems and equipment, including aircraft flight critical systems of aircraft operated under part 121 of title 14, Code of Federal Regulations, can be regularly screened to attempt to determine whether the software-based systems and equipment have been compromised by unauthorized external or internal access.” .