The MBTA on Thursday disclosed yet another problem in the troubled rollout of its new subway cars, saying it is taking its new-model Orange Line cars — 64 in all — out of service after a brake unit in one car malfunctioned.
www.nbcboston.com
I'm beginning to think most of the problems stem from the MBTA, not CRRC.

MBTA Removes New Trains Over Mechanical Issue
All new trains on the Orange Line and Red Line are currently out of service as a precaution after one vehicle suffered a breaking issue.

I'm beginning to think most of the problems stem from the MBTA, not CRRC.
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