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As it happenedended

Flights grounded – latest: Corrupted file blamed for 10,000 US plane delays

Flights beginning to resume following widespread disruption

FAA lifts grounding order on flights after computer outage

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The Federal Aviation Administration (FAA) said a corrupted database file was the reason behind the nationwide grounding of nearly 10,000 flights for the first time in two decades.

Preliminary findings traced the cause to a “damaged database file”, ruling out earlier speculation of a cyberattack. The same file reportedly corrupted both the main system and its backup.

An engineer “replaced one file with another” without realising the mistake, a senior official briefed on the internal review told ABC News.

“It was an honest mistake that cost the country millions.”

A key system used to notify pilots and ground staff of hazards and alerts suffered a “major failure” on Tuesday night. The fault lay with the NOTAM (Notice to Air Missions) system, which keeps pilots and other airport staff updated about aviation hazards and airport facilities.

The FAA was able to lift the ground stop at around 9am on the East Coast, but the damage had been done to schedules for the day.

Most airlines are waiving fees for passengers to rebook travel.

What to do if your flight was cancelled or delayed

Thousands of travelers were stranded at US airports on Wednesday due to an hours-long computer outage at the Federal Aviation Administration.

More than 1,000 US flights were cancelled early in the day and almost 7,000 flights were delayed, according to the tracking site FlightAware. That number continued to climb in the afternoon.

Staying calm and knowing your rights can go a long way if your flight plans are disrupted, experts say.

Here’s some of their advice for dealing with a flight delay or cancellation:

Flight delayed or cancelled due to the FAA system outage? Experts share advice

Thousands of travelers were stranded at US airports due to an hours-long computer outage

Megan Sheets12 January 2023 15:40

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