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Failure analysis of the 2B Containment Hyd … Failure analysis of the 2B Containment Hydrogen Recombiner temperature controller determined that the controller failed to respond to temperature setpoint adjustments following restoration of control power.</br></br>This controller had failed following power restoration on three occasions prior to identification of this failure mode. It was later determined that the 2B Containment Recombiner was inoperable for a period that exceeded the 30 day LCO specified in TS 3.6.6.1. Further investigation determined that the 2A Containment Recombiner had been inoperable for approximately eleven days during planned maintenance activities concurrent with the 2B recombiner inoperability.rent with the 2B recombiner inoperability. +
Failure analysis of the 2B Containment Hyd … Failure analysis of the 2B Containment Hydrogen Recombiner temperature controller determined that the controller failed to respond to temperature setpoint adjustments following restoration of control power.</br></br>This controller had failed following power restoration on three occasions prior to identification of this failure mode. It was later determined that the 2B Containment Recombiner was inoperable for a period that exceeded the 30 day LCO specified in TS 3.6.6.1. Further investigation determined that the 2A Containment Recombiner had been inoperable for approximately eleven days during planned maintenance activities concurrent with the 2B recombiner inoperability.rent with the 2B recombiner inoperability. +
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