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It's not just you: The TSA's new CT scanning machines are slow

April 04, 2022
4 min read
new TSA 3d CT x ray scanners
It's not just you: The TSA's new CT scanning machines are slow
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Editor's Note

This story has been updated with new information.

On paper, the Transportation Security Administration's new baggage scanners offer a lot of promise. They'll give TSA officers a better, three-dimensional look at potential threats, and allow those without TSA PreCheck to keep liquids and laptops in their bags.

They're also very slow — frustrating travelers. Adding a layer of complication (and slowness), the new machines require passengers to line up all of their belongings — even suitcases — and place them on bins that then get pulled into the screening queue.

The changes tied to the new computed tomography, or CT, scanning machines have been particularly vexing to those who already have TSA PreCheck.

Since they already don't have to take items out of their bag, many just view the machines as devices that create a bottleneck in expedited-security lanes. It's a phenomenon that TPG staff members and travelers nationwide have noticed in recent months, and an issue the TSA has acknowledged.

TPG Lounge member Chris Ruegsegger was in a TSA PreCheck lane with just a single person ahead of him at Hartsfield-Jackson Atlanta International Airport (ATL) about two months ago — but still had to wait for the CT scanner to process his bags.

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After walking through the metal detector, it took "a couple minutes for our bags to go thru the CT scanning machine," Ruegsegger wrote.

Joelle Erickson has TSA PreCheck but ended up in a regular screening lane at Newark Liberty International Airport (EWR) a few weeks ago. She received a card that allowed her to retain some TSA PreCheck benefits — something travelers informally call "PreCheck lite."

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"I think it took about 10 minutes to screen 10 people... If not longer," she wrote. "The people in front of me were trying to contact their family further back in line to warn them of how slow the machine was."

A CT scanner can be seen in the background of this photograph taken at Detroit Metropolitan Wayne County Airport (DTW) last year. (Photo by Matthew Hatcher/Bloomberg/Getty Images)

TPG staffers have had similar experiences at airports nationwide, including San Diego International Airport (SAN), Denver International Airport (DEN), Charlotte Douglas International Airport (CLT) and Boston Logan Airport (BOS).

A TSA spokesperson acknowledged that the machines can cause a longer screening experience than the existing machines — known as advanced technology, or AT, machines — due to training issues.

"As with any new technology, there is a learning curve for officers; as their proficiency increases, there is an expectation throughput will meet and exceed existing AT systems," the spokesperson said in an email to TPG.

Following the publication of this story, a second TSA spokesperson noted that "our operational testing of the CT units shows that the baggage search technology takes no additional time." In non-TSA PreCheck lanes, the agency said it sees the screening process proceeding faster with CT machines than with AT machines.

The TSA also noted that the new technology's capabilities will give TSA officers a better, 3D look at objects, reducing the overall number of bags that need to be pulled for inspection.

More: Here’s why you may not have to remove your laptop at TSA checkpoints this summer

The agency is going airport by airport and replacing AT machines with CT scanners, which is why these machines are appearing in PreCheck lanes, the spokesperson said.

"TSA is making best use of its resources by following a deployment strategy which completes, to the maximum extent practical, an entire airport at a time," the spokesperson said. "This results in the deployment of CT systems in both standard and PreCheck lanes."

The TSA recently awarded a $781.2 million contract for more of the new machines, which will number just under 1,000 once it's fulfilled. That's on top of an earlier, $200 million contract for a different model of the machines.

Still, not all travelers find the machines to be a nuisance. This is especially true for travelers who don't have PreCheck and use the regular lanes.

TPG Lounge member Matt Teichmann said he had a positive experience at Denver International Airport recently.

"As a parent traveling with iPad, snacks and wet wipes I loved the new machine," he wrote. "I'd rather it take a little longer and not have to do all that unpacking!"

Featured image by (Photo courtesy of the TSA)
Editorial disclaimer: Opinions expressed here are the author’s alone, not those of any bank, credit card issuer, airline or hotel chain, and have not been reviewed, approved or otherwise endorsed by any of these entities.

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  • 10,000 bonus miles (worth $100 toward travel) each account anniversary.

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  • If you don’t travel frequently, this might not be the best card for you.
  • Earn 75,000 bonus miles when you spend $4,000 on purchases in the first 3 months from account opening, equal to $750 in travel
  • Receive up to $300 back annually as statement credits for bookings through Capital One Travel, where you'll get Capital One's best prices on thousands of options
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  • Earn unlimited 10X miles on hotels and rental cars booked through Capital One Travel and 5X miles on flights booked through Capital One Travel
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  • Use your Venture X miles to easily cover travel expenses, including flights, hotels, rental cars and more—you can even transfer your miles to your choice of 15+ travel loyalty programs
  • Named editors' choice for "Best New Credit Card of 2021" by The Points Guy
  • Earn 10 miles per dollar when you book on Turo, the world's largest car sharing marketplace, through May 16, 2023