The aviation industry and the U.S. Federal Aviation Administration have raised concerns that 5G might interfere with sensitive aircraft electronics like radio altimeters, which could delay or divert flights.
U.S. Federal Aviation Administration

A U.S. trade group describing major passenger and cargo airlines requested the Federal Communications Commission (FCC) on Thursday to halt the deployment of the latest 5G wireless service at some airport places.
Aviation industry
- AT&T and Verizon Communications are set on Jan. 5 to deploy the C-Band spectrum 5G wireless service that they succeeded in an $80 billion government auction.
The aviation industry and the U.S. Federal Aviation Administration (FAA) have raised concerns that 5G might interfere with sensitive aircraft electronics like radio altimeters, which could delay or divert flights.
5G technology

Patricia Vercelli, general counsel for industry group Airlines for America, expressed in a report seen by Reuters that air carriers restart to urge the FCC and FAA "to work together on a practical solution that will help the rollout of 5G technology while prioritizing security and avoiding any disruption to the aviation system."
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U.S. aviation
The airlines’ petition is aimed at preserving legal options in the event ongoing discussions do not result in an agreement and to prevent what airlines warn could be “massive disruptions” to U.S. aviation, the group told.
“We are determined to work in good faith to find a solution. But time is running out,” the airline group told. Earlier this month, the group warned interference from 5G networks could cause 4% of U.S. flights to be diverted, delayed, or canceled.
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FAA this month issued airworthiness directives warning 5G interference could result in flight diversions. The agency has been preparing to issue notices further detailing the impact of potential interference but has delayed release as intensive talks continue between the Biden administration, wireless carriers, and the aviation sector.
Airlines for America, which represents American Airlines, Delta Air Lines, United Airlines, FedEx, and other major carriers, says if the FAA 5G directive had been in effect in 2019, about 345,000 passenger flights and 5,400 cargo flights would have faced delays, diversions or revocations.

In November, AT&T and Verizon delayed the commercial launch of C-band wireless service by a month until Jan. 5 and adopted precautionary measures to limit interference.
Aviation industry groups said
Aviation industry groups expressed that was incomplete. The aviation industry made a counterproposal that would limit cellular transmissions near airports and other critical places.
Wireless industry group CTIA told 5G is secure and the spectrum is being operated in about 40 other countries. The FAA declined to comment. The FCC and CTIA did not instantly comment.
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