KEY POINTS
  • The Federal Aviation Administration's planned move is expected be announced in the coming day, sources said.
  • It follows a lengthy review of Mexico's aviation oversight by the agency.
  • A downgrade would bar Mexican carriers from adding new U.S. flights and limit airlines' ability to carry out marketing agreements..
  • Downgrades mean an aviation authority is deficient in areas such as technical expertise, trained personnel, record-keeping and inspection procedures.
An Aeromexico airplane is pictured on the airstrip at Benito Juarez international airport in Mexico City, Mexico April 21, 2021.

The U.S. government is preparing to downgrade Mexico's aviation safety rating, a move that would bar Mexican carriers from adding new U.S. flights and limit airlines' ability to carry out marketing agreements, four sources briefed on the matter said.

The Federal Aviation Administration's planned move is expected be announced in the coming days and follows a lengthy review of Mexico's aviation oversight by the agency.