(Bloomberg) -- U.S. aviation regulators granted approvals that will allow some jetliners to operate within zones where new 5G wireless services are set to begin Wednesday, significantly reducing the potential impact on flight schedules. 

The Federal Aviation Administration said airline manufacturers had shown that the mobile-phone signals won’t cause interference with critical aircraft equipment on certain Airbus SE and Boeing Co. models.   

New 5G services by AT&T Inc. and Verizon Communications Inc. set to begin across numerous communities in the U.S. broadcast on radio waves that are adjacent to those used by altimeters on thousands of airliners, helicopters and other aircraft. Tests showed that the altimeters could give false readings in the presence of 5G signals. 

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