Event Notification Report for March 30, 2000
U.S. Nuclear Regulatory Commission Operations Center Event Reports For 03/29/2000 - 03/30/2000 ** EVENT NUMBERS ** 36843 +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 36843 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: SUSQUEHANNA REGION: 1 |NOTIFICATION DATE: 03/29/2000| | UNIT: [1] [] [] STATE: PA |NOTIFICATION TIME: 02:38[EST]| | RXTYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 03/29/2000| +------------------------------------------------+EVENT TIME: 02:00[EST]| | NRC NOTIFIED BY: GRANT FERNSLER |LAST UPDATE DATE: 03/29/2000| | HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |MICHELE EVANS R1 | |10 CFR SECTION: | | |ADAS 50.72(b)(2)(i) DEG/UNANALYZED COND | | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ |1 N N 0 Refueling |0 Refueling | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EXCESSIVE LEAKAGE THROUGH CONTROL ROD DRIVE CHECK VALVES | | | | "During the Unit 1 Refuel and Inspection Outage, it has been determined that | | the CRD check valves (CRD Seismic Island) exceeded the as-found minimum path | | leakage limit of 508 ml/hr. This failure is a degraded condition found while | | the plant is shutdown, and requires a 4 hour ENS notification under | | 10CFR50.72(b)(2)(i)." | | | | The NRC resident inspector will be informed of this event by the licensee. | +------------------------------------------------------------------------------+
Page Last Reviewed/Updated Thursday, March 25, 2021
Page Last Reviewed/Updated Thursday, March 25, 2021