Airlines scramble to rejig schedules amid US 5G rollout concerns

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A Southwest Airlines plane approaches to land at San Diego International Airport as US telecom companies, airlines and the FAA continue to discuss the potential impact of 5G wireless services on aircraft electronics in San Diego, California January 6, 2022. — Reuters pic
Nevin Al Sukari - Sana'a - A Southwest Airlines plane approaches to land at San Diego International Airport as US telecom companies, airlines and the FAA continue to discuss the potential impact of 5G wireless services on aircraft electronics in San Diego, California January 6, 2022. — Reuters pic

NEW YORK, Jan 19 — Major international airlines rushed yesterday to rejig or cancel flights to the United States on the eve of a 5G wireless rollout that triggered safety concerns, despite two wireless carriers saying they will delay parts of the deployment.

The Federal Aviation Administration (FAA) has warned that potential 5G interference could affect height readings that play a key role in bad-weather landings on some jets and airlines say the Boeing 777 is among models most directly in the spotlight.

Despite an announcement by AT&T and Verizon that they would delay turning on some 5G towers near airports, several airlines still canceled flights. Others said more cancellations were likely unless the FAA issued new formal guidance in the wake of the wireless announcements.

The world’s largest operator of the Boeing 777, ’s Emirates, said it would suspend flights to nine US destinations from January 19, the planned date for the deployment of 5G wireless services.

Emirates flights to New York’s JFK, Los Angeles and Washington DC will continue to operate.

Japan’s two major airlines, All Nippon Airways and Japan Airlines, said they would curtail Boeing 777 flights.

ANA said it was cancelling or changing the aircraft used on some US flights. JAL said it would not use the 777 on US mainland routes “until safety is confirmed,” according to a notice to passengers reported by airline publication Skift.

The airlines said they were acting in response to a notice from Boeing that 5G signals may interfere with the radio altimetre on the 777, leading to restrictions.

A spokesman for Boeing had no immediate comment.

Industry sources said Boeing had issued technical advisories noting potential interference, but that flight restrictions were in the hands of the FAA, which has for now limited operations at key airports unless airlines qualify for special approvals.

Radio altimetres give precise readings of the height above the ground on approach and help with automated landings, as well as verifying the jet has landed before allowing reverse thrust.

Air India, which serves four US destinations with Boeing 777s, said those flights would be curtailed or face changes in aircraft type starting from Wednesday.

Workhorse jet

The announcement of cancellations came despite the wireless carriers delaying turning on some 5G towers near key airports.

Airline industry sources said the decision had arrived too late to affect complex aircraft and crewing decisions for some Wednesday flights.

British Airways opted to switch aircraft on some flights to Los Angeles to an Airbus A380 from the usual Boeing 777 service, two people familiar with the matter told Reuters.

That entails pre-positioning a flight crew in Los Angeles to fly the Airbus superjumbo back to London on the return leg.

Web tracker Flightradar24 said the A350 may also be used. The radio altimetres on the two Airbus jets have been cleared while the planemaker is still assessing its other models.

The 777 mini-jumbo is a workhorse of the long-haul travel market that remains depressed following Covid-19, while its freighter equivalent has reshaped the aviation route map during the pandemic, according to a spokesperson for Flightradar 24.

Not all 777s are affected. Emirates, which is also a major user of the larger A380, will switch to the larger aircraft for Los Angeles and New York but keep flying the 777 to Washington, which is not affected.

Qatar Airways, which operates both Boeing 777s and A350s to the United States, said it was evaluating the situation.

President Joe Biden hailed the agreement with the wireless carriers, saying it would allow more than 90 per cent of wireless tower deployment to occur as scheduled. He said they would work to “reach a permanent, workable solution around these key airports.” — Reuters

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