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On 2/24/2012 at 0037 EST, Unit 1 was in Mo … On 2/24/2012 at 0037 EST, Unit 1 was in Mode 4 when an unplanned Reactor Protection System (RPS) actuation occurred. The trip occurred while operators were returning the Mode Switch to the 'Shutdown' position during restoration from Neutron Instrumentation testing. Jumpers had not been installed to bypass this actuation signal at the time the Mode Switch was operated, resulting in a valid signal of the RPS.</br>The RPS actuation is reportable in accordance with 10 CFR 50.72(b)(3)(iv)(A).</br>The safety significance of this event was minimal. Plant equipment performed as expected. All control rods were inserted prior to the RPS actuation and remain inserted.</br>The RPS actuation was reset and the plant remains in Mode 4.</br>The licensee has notified the NRC Resident Inspector.</br>* * * RETRACTION FROM MARK TURKAL TO JOHN KNOKE AT 1316 EST ON 3/1/12 * * *</br>Based on a detailed review of NUREG-1022, Revision 2, 'Event Reporting Guidelines 10 CFR 50.72 and 50.73,' this event has been determined not to be reportable under 10 CFR 50.72(b)(3)(iv)(A). The RPS actuation was inadvertent and was caused by a human error (i.e., failure to install appropriate jumpers) that occurred during a surveillance test. This RPS actuation was not in response to actual plant conditions satisfying the requirements for initiation of the RPS. There was no plant condition present that either warranted a scram or would prompt manual operator action in anticipation of scram condition. Therefore, this RPS actuation is considered invalid and is not reportable per 10 CFR 50.72(b)(3)(iv)(A).</br>Investigation of this condition is documented in the corrective action program in Condition Report (CR) 519432.</br>The NRC Resident Inspector was notified of this retraction." Notified the R2DO (Mark Franke).ction." Notified the R2DO (Mark Franke). +
05:37:00, 24 February 2012 +
47,697 +
07:42:00, 24 February 2012 +
05:37:00, 24 February 2012 +
On 2/24/2012 at 0037 EST, Unit 1 was in Mo … On 2/24/2012 at 0037 EST, Unit 1 was in Mode 4 when an unplanned Reactor Protection System (RPS) actuation occurred. The trip occurred while operators were returning the Mode Switch to the 'Shutdown' position during restoration from Neutron Instrumentation testing. Jumpers had not been installed to bypass this actuation signal at the time the Mode Switch was operated, resulting in a valid signal of the RPS.</br>The RPS actuation is reportable in accordance with 10 CFR 50.72(b)(3)(iv)(A).</br>The safety significance of this event was minimal. Plant equipment performed as expected. All control rods were inserted prior to the RPS actuation and remain inserted.</br>The RPS actuation was reset and the plant remains in Mode 4.</br>The licensee has notified the NRC Resident Inspector.</br>* * * RETRACTION FROM MARK TURKAL TO JOHN KNOKE AT 1316 EST ON 3/1/12 * * *</br>Based on a detailed review of NUREG-1022, Revision 2, 'Event Reporting Guidelines 10 CFR 50.72 and 50.73,' this event has been determined not to be reportable under 10 CFR 50.72(b)(3)(iv)(A). The RPS actuation was inadvertent and was caused by a human error (i.e., failure to install appropriate jumpers) that occurred during a surveillance test. This RPS actuation was not in response to actual plant conditions satisfying the requirements for initiation of the RPS. There was no plant condition present that either warranted a scram or would prompt manual operator action in anticipation of scram condition. Therefore, this RPS actuation is considered invalid and is not reportable per 10 CFR 50.72(b)(3)(iv)(A).</br>Investigation of this condition is documented in the corrective action program in Condition Report (CR) 519432.</br>The NRC Resident Inspector was notified of this retraction." Notified the R2DO (Mark Franke).ction." Notified the R2DO (Mark Franke). +
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