Major international airlines cancelled flights heading to the United States or changed the planes they're using on January 19, the latest complication in a dispute over concerns that 5G mobile phone service could interfere with aircraft technology.
Some airlines said they were warned that the Boeing 777, a plane used by carriers worldwide, was particularly affected by the new high-speed wireless service. The aircraft is the workhorse for Dubai-based Emirates, a key carrier for East-West travel, and its flight schedule took one of the biggest hits.
It was not clear how disruptive the cancellations would be. Several airlines said they would try to merely use different planes to maintain their service.
The cancellations and changes came a day after mobile phone carriers AT&T and Verizon said they would postpone new wireless service near some US airports planned for this week.
The US Federal Aviation Administration (FAA) has cleared a number of aircraft to fly into airports with 5G signals, but the Boeing 777 is not on the list.