Event Notification Report for May 05, 2016
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
05/04/2016 - 05/05/2016
Agreement State
Event Number: 51909
Rep Org: PA BUREAU OF RADIATION PROTECTION
Licensee: N/A
Region: 1
City: State: PA
County: BLAIR
License #:
Agreement: Y
Docket:
NRC Notified By: JOSEPH MELNIC
HQ OPS Officer: DONG HWA PARK
Licensee: N/A
Region: 1
City: State: PA
County: BLAIR
License #:
Agreement: Y
Docket:
NRC Notified By: JOSEPH MELNIC
HQ OPS Officer: DONG HWA PARK
Notification Date: 05/05/2016
Notification Time: 15:02 [ET]
Event Date: 05/05/2016
Event Time: 00:00 [EDT]
Last Update Date: 05/05/2016
Notification Time: 15:02 [ET]
Event Date: 05/05/2016
Event Time: 00:00 [EDT]
Last Update Date: 05/05/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
FRED BOWER (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)
FRED BOWER (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)
AGREEMENT STATE REPORT - DISCOVERY OF VACUUM GAUGE
The following was received from the Commonwealth of Pennsylvania via email:
"On May 5, 2016, the Blair County Emergency Management Agency notified the Department [of Environmental Protection] of the discovery of a NRC Equipment Corporation Model 530 Alphatron vacuum gauge. This gauge was located in a wooded area in Blair County, Pennsylvania. The gauge was manufactured with approximately 100 microcuries of radium-226. The manufacturer is no longer in business. The Department has retrieved the gauge and will safely store it until its annual collection of radium sources in September, 2016. No exposures have occurred with this discovery. It is reportable under 10 CFR 20.2201(a)(1)(i)."
Event Report ID No: PA160013
The following was received from the Commonwealth of Pennsylvania via email:
"On May 5, 2016, the Blair County Emergency Management Agency notified the Department [of Environmental Protection] of the discovery of a NRC Equipment Corporation Model 530 Alphatron vacuum gauge. This gauge was located in a wooded area in Blair County, Pennsylvania. The gauge was manufactured with approximately 100 microcuries of radium-226. The manufacturer is no longer in business. The Department has retrieved the gauge and will safely store it until its annual collection of radium sources in September, 2016. No exposures have occurred with this discovery. It is reportable under 10 CFR 20.2201(a)(1)(i)."
Event Report ID No: PA160013
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 51910
Facility: PALO VERDE
Region: 4 State: AZ
Unit: [1] [] []
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: DAVID HECKMAN
HQ OPS Officer: BETHANY CECERE
Region: 4 State: AZ
Unit: [1] [] []
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: DAVID HECKMAN
HQ OPS Officer: BETHANY CECERE
Notification Date: 05/05/2016
Notification Time: 15:39 [ET]
Event Date: 05/05/2016
Event Time: 05:00 [MST]
Last Update Date: 06/29/2016
Notification Time: 15:39 [ET]
Event Date: 05/05/2016
Event Time: 05:00 [MST]
Last Update Date: 06/29/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(A) - DEGRADED CONDITION
10 CFR Section:
50.72(b)(3)(ii)(A) - DEGRADED CONDITION
Person (Organization):
JOHN KRAMER (R4DO)
JOHN KRAMER (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
HIGH PRESSURE SAFETY INJECTION VALVE BONNET LEAKAGE IDENTIFIED DURING REFUELING OUTAGE
"The following event description is based on information currently available. If through subsequent reviews of this event additional information is identified that is pertinent to this event or alters the information being provided at this time, a follow-up notification will be made via the ENS or under the reporting requirements of 10 CFR 50.73.
"At 0500 MST on May 5, 2016, engineering personnel determined that leakage from the bonnet seal weld of the Train B High Pressure Safety Injection (HPSI) system loop 2A injection valve, SIBUV0616, constituted reactor coolant system pressure boundary leakage. This is being reported as a degradation of a principal safety barrier pursuant to 10 CFR 50.72(b)(3)(ii)(A).
"The leak was identified during a planned activity in which Operations was filling the refueling pool using HPSI pump B. Leakage was stopped when a plant operator closed SIBUV0616.
"PVNGS Unit 1 was shut down for its 19th refueling outage (1R19) on April 9, 2016, at 0000 MST and is in Mode 6.
"The NRC Resident Inspectors have been informed of this condition."
* * * RETRACTION PROVIDED BY JORGE RODRIGUEZ TO JEFF ROTTON AT 1732 EDT ON 06/29/2016 * * *
"Subsequent engineering evaluation of the leak condition concluded the leakage from the bonnet seal weld of SIBUV0616 was not reportable reactor coolant system pressure boundary leakage. This conclusion was based on further reviews of the PVNGS licensing bases, ASME Code requirements, and design features of the valve with vendor assistance, which determined that the body-to-bonnet threads provide the structural support for the mechanical joint and the seal weld is not required for structural integrity of the component.
"Based on the above information, PVNGS has determined the leakage did not represent a degraded condition of a principal safety barrier as defined by 10 CFR 50.72(b)(3)(ii)(A) and Event Notification No. 51910 is hereby withdrawn.
"The NRC Resident Inspectors have been informed."
Notified R4DO (Werner)
"The following event description is based on information currently available. If through subsequent reviews of this event additional information is identified that is pertinent to this event or alters the information being provided at this time, a follow-up notification will be made via the ENS or under the reporting requirements of 10 CFR 50.73.
"At 0500 MST on May 5, 2016, engineering personnel determined that leakage from the bonnet seal weld of the Train B High Pressure Safety Injection (HPSI) system loop 2A injection valve, SIBUV0616, constituted reactor coolant system pressure boundary leakage. This is being reported as a degradation of a principal safety barrier pursuant to 10 CFR 50.72(b)(3)(ii)(A).
"The leak was identified during a planned activity in which Operations was filling the refueling pool using HPSI pump B. Leakage was stopped when a plant operator closed SIBUV0616.
"PVNGS Unit 1 was shut down for its 19th refueling outage (1R19) on April 9, 2016, at 0000 MST and is in Mode 6.
"The NRC Resident Inspectors have been informed of this condition."
* * * RETRACTION PROVIDED BY JORGE RODRIGUEZ TO JEFF ROTTON AT 1732 EDT ON 06/29/2016 * * *
"Subsequent engineering evaluation of the leak condition concluded the leakage from the bonnet seal weld of SIBUV0616 was not reportable reactor coolant system pressure boundary leakage. This conclusion was based on further reviews of the PVNGS licensing bases, ASME Code requirements, and design features of the valve with vendor assistance, which determined that the body-to-bonnet threads provide the structural support for the mechanical joint and the seal weld is not required for structural integrity of the component.
"Based on the above information, PVNGS has determined the leakage did not represent a degraded condition of a principal safety barrier as defined by 10 CFR 50.72(b)(3)(ii)(A) and Event Notification No. 51910 is hereby withdrawn.
"The NRC Resident Inspectors have been informed."
Notified R4DO (Werner)