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GE HealthCare has become aware that gradient coils for certain MR systems (see affected product list in this letter), under specific conditions, can produce elevated acoustic noise during scanning. As a result, acoustic levels can exceed 99dB, the limit established by International Electrotechnical Commission (IEC 60601-2-33) when using hearing protection with a Noise Reduction Rating (NRR) of 29dB, as currently required in the Operator Manual.
The 8-inch model of the Jewel Precision Reusable Rigid Sterilization Container System (i.e., model number: JP-24-8) was not cleared by the FDA. The letter to file justifying the change in size was insufficient.