The reported leak occurred during the thawing process at the user's facility.The leak did not occur during filling of the bag, which suggests the leak likely did not exist before the bag was frozen.A single sample was received for investigation.The sample contained a spike component in the left spike port.Visual inspection revealed a tear in the film, directly under the end of right spike port tube.The opening was approximately 1/2-inch long.Additionally, there appeared to be label adhesive residue on the bag (opposite side from there the film tear was located).It is unknown if an adhesive label may have contributed to the film tear observed on the sample.An adhesive label could potentially interfere with the flexible characteristics of the film, possibly resulting in the crack/tear observed from the bag photos provided by the user.The root cause of the film tear on the bag could not be conclusively determined and the exact point in the process where the film tear occurred is unknown.There are several potential issues which could contribute to a failure mode of this nature.Residual moisture on the outside of the bag when it was placed inside the cassette.Residual moisture could cause the bag to freeze/adhere to the cassette during the freezing process.A condition of this type could cause film damage upon removal of a frozen bag from the cassette.Handling of the bag in the frozen state.The film of a frozen bag is fragile - inadvertent manipulation or impact on the bag could cause the film to fracture.Precautions for potential issues addressed above are addressed in the product ifu's.
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