A retrospective review was performed by agfa for events, from years 2012 to march 20, 2015, related to unexpected movement of dx-d600 systems.Vigilance activity to report identified events was implemented march 2015.The following event was identified and is being reported to the fda.The customer reported that a mechanical lock had fallen off of their dx-d600 unit.The customer knew agfa service was scheduled to upgrade their system, but wanted to know when service would be on site.Service explained a service visit had already occurred.Service repositioned and centered the detent roller tensioner that had fallen from the ceiling suspension unit.Additional software upgrades were underway.The root cause is related with the screws (threaded rod) used to fix the mechanical detents to the rails and were not tight enough and became loose with the use of the system.In september 2014, new screws were introduced by (b)(4), agfa's supplier, to install the detents to the rails.The new screws are self-drilling and replace some of the hex socket threaded rod used before.This is part of the upgrade to improve detent fixation.Agfa initiated on december 15, 2014, corrections communicated to the fda, in (fda # z-2175-2014) to implement the mandatory upgrade of semi-automatic dx-d600 systems to version 3.6 to prevent unexpected system movements and to implement the mandatory upgrade of analog manual dx-d600 systems to an improved detent fixation.There were no reports of harm to any patients or users during this event.
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