The customer's reported event was confirmed.The device did not operate upon receipt or when fresh batteries were installed.A root cause for this reported event cannot be determined.Processing the device, by the customer, through the autoclave prohibited isolating a single root cause.The device was returned in a plastic bag and there was no marking or identification on this bag.The only identification was on the product experience report and the outside of the shipping carton.Initial inspection observed that the unit did not function when engaging the trigger.Inspection of the battery pack displayed corrosion on three of the batteries and the corresponding contact plates.Additionally, the battery pack was assembled using uncoated brass terminals and everyready gold batteries.The everyready batteries listed an expiration date on 2012.The device did not operate upon receipt or when fresh batteries were installed.However, the reported lot number for this device is incorrect.The reported lot number was manufactured in 2013 with nickel coated battery terminals and energizer batteries with an expiration date of 2023.The returned device was assembled with uncoated brass battery terminals and everready gold batteries, expiration date of 2012.The engineering change to add nickel plating to the brass terminals to reduce corrosion was issued in 2008.The returned device could not have been manufactured after 2009 and therefore cannot be from the reported lot #62510132.The lot # of the returned device was unable to be determined.
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