"Time has run out and it's imperative that the White House intervene today to delay the imminent rollout of C-band 5G signals," the groups said in a statement, issued just hours before the spectrum is due to come into use.

"Starting Wednesday, the disruptions to our country's aviation system are going to be incredibly challenging, especially at a time when the industry is currently experiencing COVID-related operational issues," the statement from the Aerospace Industries Association, International Air Transport Association, Regional Airline Association and others said.

(Reporting by David Shepardson; Editing by Leslie Adler)