SYSTEM SAFETY ASSESSMENTS AND OTHER REQUIREMENTS.

SEC. 115. [49 U.S.C. 44704 note] SYSTEM SAFETY ASSESSMENTS AND OTHER REQUIREMENTS. (a) In General.—Not later than 2 years after the date of enactment of this title, the Administrator shall issue such regulations as are necessary to amend part 25 of title 14, Code of Federal Regulations, and any associated advisory circular, guidance, or policy of the Administration, in accordance with this section. (b) System Safety Assessments and Other Requirements.—In developing regulations under subsection (a), the Administrator shall— (1) require an applicant for an amended type certificate for a transport airplane to— (A) perform a system safety assessment with respect to each proposed design change that the Administrator determines is significant, with such assessment considering the airplane-level effects of individual errors, malfunctions, or failures and realistic pilot response times to such errors, malfunctions, or failures; (B) update such assessment to account for each subsequent proposed design change that the Administrator determines is significant; (C) provide appropriate employees of the Administration with the data and assumptions underlying each assessment and amended assessment; and (D) provide for document traceability and clarity of explanations for changes to aircraft type designs and system safety assessment certification documents; and (2) work with other civil aviation authorities representing states of design to ensure such regulations remain harmonized internationally. (c) Guidance.—Guidance or an advisory circular issued under subsection (a) shall, at minimum— (1) emphasize the importance of clear documentation of the technical details and failure modes and effects of a design change described in subsection (b)(1); and (2) ensure appropriate review of any change that results in a functional hazard assessment classification of major or greater, as such term is defined in FAA Advisory Circular 25.1309-1A (or any successor or replacement document). (d) FAA Review.—Appropriate employees of the Aircraft Certification Service and the Flight Standards Service of the Administration shall review each system safety assessment required under subsection (b)(1)(A), updated assessment required under subsection (b)(1)(B), and supporting data and assumptions required under subsection (b)(1)(C), to ensure that each such assessment sufficiently addresses the considerations listed in subsection (b)(1)(A).