“We need urgent intervention to avoid functional disruptions that could affect the supply of medicines and medical supplies, including passengers, shipping chains and vaccines,” the letter said.

The BBC has seen a letter sent to a number of officials, including Transport Minister Pete Bottick and the head of the US Federal Aviation Authority.

The BBC is aware that negotiations on what has been described as a “very complicated situation” are currently taking place at the highest level in the US administration.

Airlines are demanding that fifth-generation networks be removed “about three kilometers from the runways of affected airports” in accordance with regulations issued by the Federal Aviation Authority prior to the start of service on Wednesday.

We call on the Federal Aviation Authority to determine the locations of the towers of the Fifth Generation Network near airports and runways, to ensure the safety of passengers, and to determine where to fly long distances to avoid damaging aircraft. “The letter said.

Airbus and Boeing issued a rare joint statement weeks ago warning planes of the dangers of the network.

In their letter, the ten airlines said, “Airline manufacturers have told us that most of the aircraft currently in service may not be in service.”

He added, “In addition to this chaos at the local level, the shortage of aircraft could affect flights, and tens of thousands of Americans could be stranded in various countries around the world.”

In the United States, the U.S. Federal Aviation Administration, which oversees the safety of aircraft and aviation, says that about 45 percent of the U.S. Navy’s must land on runways at nearby airports, amid poor visibility. For Fifth Generation Network Towers. “

The commission added that Boeing and Airbus have authorized the installation of two radio network communication devices on a number of aircraft, but some aircraft may be affected at certain airports.

The Commission pointed out that it will liaise with aircraft manufacturers to find out how altimeter engines and locations operate during flights and how to avoid being affected by fifth-generation networks.

American telecommunications companies have invested billions of dollars in improving mobile service networks and the Internet, compatible with the fifth generation, characterized by high speed and wide connectivity.

The network’s work has been delayed several times due to concerns raised by airlines, so the release of fifth-generation networks has been postponed from the end of last year to the beginning of this month, and then again until Wednesday, when it may be postponed again.

The American Wireless Trade Association – also known as CTIA – has said 5G networks are secure, accusing the aviation industry of distorting the facts.

“Delays can cause real damage. Delays of one year will cause $ 50 billion in economic growth losses as our country recovers from the effects of the epidemic,” Meredith Atwell Becker, the union’s CEO, said in a blog post last month. .