The FAA joined the European Union Aviation Safety Agency in requiring airlines to address the issue with a new software update. More than 500 U.S.-registered aircraft will be impacted.
The EU safety agency said it may cause “short-term disruption” to flight schedules. The problem was introduced by a software update to the plane’s onboard computers, according to the agency.
In Japan, All Nippon Airways, which operates more than 30 planes, canceled 65 domestic flights for Saturday. Additional cancellations on Sunday were possible, it said.
American Airlines has about 480 planes from the A320 family, of which 209 are affected. The fix should take about two hours for many aircraft and updates should be completed for the overwhelming majority on Friday, the airline said.
On Saturday, the airline said in a statement that only four planes still needed to be updated and that it “expects no further operational impact.”
Delta said it expected the issue to affect less than 50 of its A321neo aircraft. United said six planes in its fleet are affected and it expects minor disruptions to a few flights. Hawaiian Airlines said it was unaffected.
Pope Leo XIV is on his inaugural foreign trip, to Turkey and Lebanon, and is flying along with the papal delegation and press corps aboard an ITA Airways Airbus A320neo charter.
The Vatican spokesman, Matteo Bruni, said Saturday that ITA was working on the issue. He said the necessary component to update the aircraft was on its way to Istanbul along with the technician to install it. Leo was scheduled to fly from Istanbul, Turkey to Beirut, Lebanon on Sunday afternoon.
In France, Transport Minister Philippe Tabarot said the situation has stabilized as several software updates had already been installed. He told BFM-TV that the impact was limited in the country with an “almost complete return to normal in French airports.”
Scandinavia’s SAS said its flights were operating as normal Saturday, after teams worked overnight to install the required software.
Mike Stengel, a partner with the aerospace industry management consulting firm AeroDynamic Advisory, said the fix could be addressed between flights or on overnight plane checks.
“Definitely not ideal for this to be happening on a very ubiquitous aircraft on a busy holiday weekend,” Stengel said from Ann Arbor, Michigan. “Although again the silver lining being that it only should take a few hours to update the software.”
The A320 is the primary competitor to Boeing’s 737, Stengel said. Airbus updated its engine in the mid-2010s, and planes in this category are called A320neo, he said.
The A320 is the world’s bestselling single-aisle aircraft family, according to Airbus’ website.
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Associated Press writers Mari Yamaguchi in Tokyo, Jennifer Kelleher in Honolulu, Geir Moulson in Berlin, Samuel Petrequin, Pan Pylas in London and Nicole Winfield in Istanbul contributed to this report.
