; (D) in paragraph (16), by striking major and inserting any ; and (E) in paragraph (17)(A), by striking significant and inserting any . (c) Assistance to families of passengers involved in aircraft accidents Section 1136 is amended— (1) in subsection (a), by striking aircraft accident within the United States involving an air carrier or foreign air carrier and resulting in a major loss of life and inserting aircraft accident involving an air carrier or foreign air carrier, resulting in any loss of life, and for which the National Transportation Safety Board will serve as the lead investigative agency ; and (2) by amending subsection (h)(1) to read as follows: (1) Aircraft accident The term aircraft accident means any aviation disaster, regardless of its cause or suspected cause, for which the National Transportation Safety Board is the lead investigative agency. . (d) Information for families of individuals involved in accidents (1) In general Chapter 11 is amended by inserting after section 1139 the following: 1140. Information for families of individuals involved in accidents In the course of an investigation of an accident described in section 1131(a)(1), except an aircraft accident described in section 1136 or a rail passenger accident described in section 1139, the Board may, to the maximum extent practicable, ensure that the families of individuals involved in the accident, and other individuals the Board deems appropriate— (1) are informed as to the roles, with respect to the accident and the post-accident activities, of the Board; (2) are briefed, prior to any public briefing, about the accident, its causes, and any other findings from the investigation