A trumpf medical service technician was dispatched to the facility and found a gap between the spring arm and central axis.The technician found that the snap ring and washer that hold the spring arm were in the central axis cavity, but out of their proper position.The spring arm was put back into place and secured properly with a new snap ring and washer.A review of the product's service history indicates that an inspection was performed on (b)(6) 2017 as a part of the open fda correction #z-563-2016 and the snap ring was noted to have been seated correctly.On (b)(6) 2017, the central axis was replaced due to video signal issues.This activity requires the removal and replacement of the spring arms, and it is believed that the snap rings were incorrectly installed during this process.
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