On (b)(6) 2015, it was reported to midmark by a dealer technician that an x-ray unit (preva intraoral dental x-ray system, serial no.(b)(4)) separated from its wall mounting at a user facility in (b)(6).No injuries were reported.The mounting was visually inspected at the user facility, and photographs were provided to midmark.It was observed that the device was bolted to the wall using plywood as a backing material.The product installation instructions state that plywood is not an acceptable mounting material (refer to "preva dental x-ray system installation and service manual," (b)(4)), and the cause of this incident is thus determined to be installation error.The unit has since been reinstalled using the two-stud procedure per manufacturer instructions.
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