Failed TSA CBT twice — what am I missing in my prep?

by David K. 499 views3 replies
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David K.OP
May 27, 2026

Hey everyone. I've taken the TSA Computer Based Test twice now and keep getting tripped up on the X-ray image interpretation section. My scores are close — I think I'm around the 65-70% range — but the cutoff is 70% so I keep just missing it. I've been working toward this for about four months and it's genuinely frustrating at this point.

I've gone through a couple of TSA practice test sets online but honestly they feel too easy compared to the real thing. The actual exam throws these partial-view bag images at you that I've never seen in any study guide I've found. Does anyone have a recommendation for materials that actually mirror the difficulty of the real exam? Especially for the object recognition and prohibited items sections.

My third attempt is scheduled in six weeks. I'm putting in about an hour a day right now but I'm open to rearranging my schedule if people think I need more. Any exam tips from people who've passed on their third try or later would mean a lot — I know I'm not the only one who didn't get it on the first shot.

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Tyler B.
May 27, 2026
I was in almost the exact same spot — failed twice, passed on attempt three. The thing that actually helped me was slowing way down on the X-ray images instead of trying to speed through them. I'd been practicing with a timer and it was making me careless. Also, the TSA study guide on the official site has a section on prohibited item categories that I basically memorized cold. That alone probably added 8-10 points for me.
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rachel_s
May 28, 2026
Have you tried practicing with real X-ray image databases? There are a couple of aviation security training sites that use actual baggage scan photos, not illustrations. The illustrated practice tests are almost useless for the image portion IMO. The written sections — English and math — are pretty straightforward if you've got a solid study guide covering those. Where are you losing the most points, is it all in image interpretation or across multiple sections?
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Kevin O.
May 28, 2026
Six weeks is plenty of time, don't stress it. I'd bump to 90 minutes a day for the last two weeks and focus exclusively on image recognition. Timed drills, not just casual practice. You've clearly got the knowledge — it's about building pattern recognition speed now.

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