The chief executives of America's largest airlines warned of a "catastrophic disruption" to travel and shipping operations if telecommunication companies roll out their 5G technology as planned Wednesday without limiting the technology near U.S. airports.
On Tuesday, AT&T and Verizon both confirmed to CBS News that they have voluntarily agreed to postpone turning on a limited amount of towers around certain airports.
"We are frustrated by the FAA's inability to do what nearly 40 countries have done, which is to safely deploy 5G technology without disrupting aviation services, and we urge it to do so in a timely manner," an AT&T spokesperson said in a statement, reiterating that the rest of their 5G launch will continue as planned.
Verizon and AT&T haddue to warnings from airlines and aircraft manufacturers concerned that the new system might interfere with the devices planes use to measure altitude.
The executives, writing to Transportation Secretary Pete Buttigieg and other U.S. government officials, highlighted the risk of "economic calamity" should Verizon and AT&T proceed with deploying the new technology before the necessary upgrades and changes have been made to aviation equipment.
"We are writing with urgency to request that 5G be implemented everywhere in the country except within the approximate two miles of airport runways as defined by the FAA on January 19, 2022," the CEOs said in a Monday letter obtained by CBS News and several other news organizations.
"To be blunt, the nation's commerce will grind to a halt," they said.
The Federal Aviation Administration said Sunday it had approved some transponders to be safely operated within areas where 5G will be deployed, clearing "as many as 48 of the 88 airports most directly affected by 5G C-Band interference."
But the airlines are worried that remaining limitations at those airports, as well as a large amount of equipment still uncertified,including the grounding of thousands of flights.
"In addition to the chaos caused domestically," the letter continues, the lack of certified planes "could potentially strand tens of thousands of Americans overseas."
The Reuters news agency reports that carriers late on Monday were thinking of scrapping some international flights due to get to the U.S. on Wednesday.
In a statement, United Airlines said, "The federal government's current 5G rollout plan will have a devastating impact on aviation, negatively affecting an estimated 1.25 million United passengers, at least 15,000 flights and much-needed goods and tons of cargo traveling through more than 40 of the largest airports in the country annually."
In addition to the transport secretary, their letter was addressed to the head of the FAA, the head of the Federal Communications Commission and the White House's National Economic Council.
U.S. airlines also have protested against the potential costs incurred.
The executives called on authorities to "take whatever action necessary to ensure that 5G is deployed except when towers are too close to airport runways until the FAA can determine how that can be safely accomplished without catastrophic disruption."
The letter was signed by CEOs of major airlines including American, United, Delta and Southwest, as well as the leaders of shipping giants FedEx and UPS.
"Immediate intervention is needed to avoid significant operational disruption to air passengers, shippers, supply chain and delivery of needed medical supplies," they wrote.
The FAA released a brief statement Monday apparently seeking to allay concerns about the 5G rollout's impact on aviation, but it stopped short of declaring any concrete next steps in the process.
"With safety as its core mission, the FAA will continue to ensure that the traveling public is safe as wireless companies deploy 5G," the agency said.
"The FAA continues to work with the aviation industry and wireless companies to try to limit 5G-related flight delays and cancellations."
Verizon and AT&T won contracts worth tens of billions of dollars last February to operate 5G in the 3.7-3.98 GHz frequency bands, and the rollout of the service was due to begin December 5.
Unless the major telecommunications companies are blocked by federal regulators or reach an agreement with the airlines, they are now scheduled to turn on their 5G service nationwide on January 19.
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