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volvo is still looking into it. but it tells cnn that the dealership thought the car was equipped with a radar and camera system that scans for pedestrians. >> it automatically activates the braking power if the driver fails to brake in time. >> so what happened with a driver behind the wheel at the dealership. >> the good news is according to volvo, it did not malfunction. >> the car wasn't equipped with a pedestrian protection system and for thinking it was when it wasn't and letting the staff stand there, volvo blames it on human error. and the automatic braking system failing, they attributed that to a battery problem. >> it was a mishap in the testing here. >> others have challenging the
luckily, no passengers onboard. delta air lineses saying mechanics were testing the engines when they suddenly had a problem with the brakes. peter gold is former managing director of the national transportation safety board, a man who has looked a many accidents more serious than this one. peter, how do you test the engines without brakes? >> well, there are processes and procedures. mechanics move aircraft around airports like atlanta every day, and there's a couple of things you've got to do. one is you've got to make sure that the hydraulics system is charged, that the pumps are on. that gives you the braking power. the second thing is if procedure calls for a static runup of the engine, then you've got to make sure you have your blocks in place to make sure the wheels aren't moving. i mean, this is, this is an awfully tough way to start the day if you're delta air lines. jon: yeah. the checklist, when i fly a little single-engine plane, the