INVESTIGATION OF COMPLAINTS.

SEC. 549. INVESTIGATION OF COMPLAINTS. Section 41705(c) of title 49, United States Code, is amended by striking paragraph (1), and inserting the following: “(1) In general.—The Secretary shall— “(A) not later than 120 days after the receipt of any complaint of a violation of this section or a regulation prescribed under this section, investigate such complaint; and “(B) provide, in writing, to the individual that filed the complaint and the air carrier or foreign air carrier alleged to have violated this section or a regulation prescribed under this section, the determination of the Secretary with respect to— “(i) whether the air carrier or foreign air carrier violated this section or a regulation prescribed under this section; “(ii) the facts underlying the complaint; and “(iii) any action the Secretary is taking in response to the complaint.” .