Integra completed its internal investigation 31oct2016.The investigation included: method: - review of device history records.- review of complaint management database for similar complaints.Results: the egr 138 assembly (p/n 31-0101) associated with this complaint was part of egr 138 lot # pa0025.A device history record review revealed that egr 138 assembly lot # pa0025 was assembled on september 25 ¿ october 6, 2015 and inspected on september 25 ¿ october 6, 2015.The lot was released into finished goods inventory on february 25, 2016.There were no material non-conformances or variances associated with the inspection of the final product.A query in the electronic database determined that fourteen (14) other customer complaints have been initiated based on the inability for the egr cutting blade to retract.The trend analysis complaint rate was performed by determining the number of reported non-conformances for the egr 157 and egr 138 systems.Egr complaint trend (b)(4).Notes: one returned device from lot pa0016 worked as designed.Conclusion: the egr 138 assembly associated with this customer complaint was not returned for evaluation.This prevented integra from performing a complaint analysis and identifying a likely root cause.
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