The autopulse platform (s/n 21817) was returned for evaluation.Visual inspection was performed and the following was identified: the head restraints wire were broken, the front enclosure, bottom enclosure, and battery lock were damaged.The lcd was also distorted with a vertical line running across the display.From the condition of the platform, the damages appear to have been caused by normal wear and tear.Functional testing was performed and the reported issue of the platform not retracting the lifeband and subsequently not performing compressions was confirmed.The platform displayed a user advisory 7 (discrepancy between load 1 and load 2 too large) during power up.Further inspection identified the cause to be that both load cell modules were not functioning properly.After replacing the load cell modules, the platform passed functional testing and no user advisories or other issues were observed.A review of the archive was performed and no user advisories were observed on the reported event date of (b)(6) 2015.However, consistent with the observations made during functional testing, the archive does show that multiple ua 7 codes occurred on (b)(6) 2015.Based on the investigation, the parts identified for replacement were the top cover (including head restraint wires), the front enclosure, bottom enclosure, battery lock, lcd display, and both load cell modules.In summary, the reported complaint was confirmed during functional testing as well as archive review and is attributed to both load cell modules being defective.Following service, including replacement of the load cells, the device passed all testing criteria.
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