The reported complaint of user advisory - ua07 (discrepancy between load 1 and load 2 too large) on the autopulse platform (serial # (b)(4)) was confirmed during functional testing and archive data review.The investigation findings revealed that the root cause of the reported ua07 was due to defective load cells which is likely attributed to wear and tear.Unrelated to the reported complaint, a cracked front enclosure, a bent battery lock and two missing load plate screws on the autopulse platform were observed during visual inspection.These types of physical damages and missing parts likely attributed to wear and tear.The damaged front enclosure, bent battery lock and missing screws were replaced.During archive data review, multiple ua07 error messages were observed on the event date.Thus, confirming the reported complaint.Additionally, ua17 (motor on for too long during active operation) was also identified but not related to the reported complaint.The initial functional testing of the autopulse platform could not be performed due to ua07 (discrepancy between load 1 and load 2 too large) displayed upon powering on.Thus, confirming the reported complaint.To remedy ua07, the defective load cells identified during service evaluation were replaced.During re-evaluation, the brake gap was unable to adjust and cleaned.This fault caused ua17 and to remedy this issue, the drivetrain was replaced.The autopulse platform was re-tested and passed all functional tests.The autopulse platform is ready for clinical use.Historical complaints were reviewed for service information related to the reported complaint and there was no previous history of complaint reported for autopulse with serial number (b)(4).
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