Visual and functional analysis was performed on the returned device.The reported gas/air leak was unable to be confirmed due to the condition of the returned unit; however, the window tube was noted to be stretched/wrinkled and ballooned.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other similar complaints reported from this lot.Based on the reported information and analysis of the returned unit, the noted stretched/wrinkled and ballooned window tube appears to be related to a potential product quality issue; therefore, an exception issue has been initiated to further investigate this complaint.
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