The autopulse platform (s/n (b)(4)) was returned to the manufacturer for evaluation.Visual inspection was performed and it was observed that the head restraint wire was broken and one of the load plate screws was missing.The front enclosure, battery lock and battery compartment were also observed to be damaged.Based on the condition of the returned platform, the damage appears to have been due to wear and tear.Functional testing was performed and the reported complaint of the lifeband being unable to retract was confirmed.The platform displayed a user advisory (ua) 16 (timeout moving to take-up position).Inspection of the device identified the cause to be that the drive train motor brake had seized up.Upon cleaning and re-adjusting the brake gap back within specification, the platform performed as intended with no other user advisories or warnings exhibited.A review of the archive was performed and no user advisories or warnings were observed on the reported event date of (b)(6) 2015.Based on the initial investigation, the parts identified for replacement were the top cover, the load plate screw, the front enclosure, the battery lock and the battery compartment.The drivetrain motor brake was cleaned and readjusted back within specification to remedy the reported complaint.In summary, the reported complaint was confirmed during functional testing and is attributed to the drivetrain motor brake seizing up.Following service, including cleaning and re-adjusting the brake gap back within specification, the device passed all testing criteria.
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