The reported complaints of the autopulse platform (serial # (b)(4)) displayed fault code 16 (timeout moving to take-up position) was confirmed during initial functional test and archive data review.The investigation findings revealed that the root cause of fault code 16 was due to seized brake gap in which was likely attributed to wear and tear.The autopulse platform was manufactured in september 2013 and is nearly 7 years old, past its expected serviceable life of 5 years.Unrelated to the reported complaint, a cracked front enclosure, torn load plate cover and a bent battery lock were observed during visual inspection.These types of physical damages on the returned autopulse platform were likely attributed to wear and tear and/or mishandling.The damaged enclosure, load plate cover and battery lock were replaced.During archive data review, multiple fault code 16 were identified on the event date.Thus, confirming the reported complaint.Initial functional testing on the returned autopulse platform failed due to fault code 16 (moving to take-up position) displayed upon powering on.Thus, confirming the reported complaint.To remedy fault code 16, the brake gap was un-seized.After service repair completion, the autopulse was subjected to the run-in test using the 95% patient large resuscitation test fixture (lrtf) with good known test battery until discharged without any fault or error.The autopulse platform passed all other functional tests.Historical complaints were reviewed for service information related to the reported complaint and there was no similar complaint for autopulse with serial number (b)(4).
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