Integra has completed their internal investigation on 10jan2017.The investigation activities included: methods: -evaluation of actual device.-review of device history records.-review of complaint history.Results: device history record reviewed for this product id s/n (b)(4) manufactured on 4/8/2011 show no abnormalities related to the reported failure.The devices manufactured during this period passed all required inspection points with no associated mrr¿s, variances or rework.No manufacturing or design related trend has been identified.Conclusion - in summary: reason for return was confirmed, heavy use over 7 months.Many worn internal assemblies and corrosion found on the motor.Although the head calibration was found in tolerance many impact marks were found along the leading edge of the gauge bar.No material, part, or assembly non-conformance found.
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