; and (4) provide recommendations on measures to adopt to mitigate against such risks and ensure that any use of CVR data serves the sole purpose of a safety investigation, including recommendations for the United States to make to ICAO to mitigate these risks. 11. Transparency in aircraft maintenance and repair work (a) In general Not later than 1 year after the date of enactment of this Act, the Administrator shall update the guidelines of the FAA for part 121 certificate holders in implementing a Continuing Analysis and Surveillance System (CASS) for their air carrier maintenance programs to include reporting no less than once every 6 months by certificate holders to the FAA of any failure to follow procedures in aircraft maintenance as well as any major alteration, complete overhaul, or repair of mechanical irregularities of each airframe, engine, propeller, and appliance. (b) Advisory Not later than 1 year after the date of enactment of this Act, the Administrator shall issue an advisory with formatting guidelines for air carriers to report information as required under subsection (a). (c) Inclusion For each instance of a failure to follow procedures and for each major alteration, overhaul, or repair reported under the requirements of this section, the Administrator shall require certificate holders to include any name and any physical address where the work is carried out for each maintenance provider that performs work. (d) Definitions In this section, the terms major alterations , airframe , propeller , and appliance have the meanings given such terms in part 1 of title 14, Code of Federal Regulations. 12. Review of FAA’s Aviation Safety Inspection Program (a) Audit by the Department of Transportation Inspector General Not later than 6 months after the date of enactment of this Act, the Inspector General of the Department of Transportation shall initiate a review of the FAA’s August 2017 Flight Standards reorganization and its aviation safety inspection program. (b) Review The review shall include an