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NPS_Watch Jun 21, 2019
#1
The Daily Dose - Exposing the nuclear power industry while the nuclear power industry exposes you.

There are/is 3 EN(s) today, 1 associated with power stations.

[  ]

NRC Event Notices for June 21, 2019 |
https://www.nrc.gov/reading-rm/doc-colle...621en.html

[ ]

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----------------- Power Reactor Event Notices
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----------- [ Current event for TN_WattsBar_2 ]

20190620 | TN_WattsBar_2 | INOPERABILITY OF CONTAINMENT SHIELD BUILDING |
https://www.nrc.gov/reading-rm/doc-colle...ml#en54127

"At 1340 EDT on June 20, 2019,
a breach in excess of allowable margin in the Unit 2 Shield Building annulus was identified.
T.S. LCO 3.6.15, Condition A was entered.
The breach is expected to be repaired within the 24 hours allowed LCO time.

"No other equipment issues were identified.

"The Shield Building ensures that the release of radioactive material from the containment atmosphere
is restricted to those leakage paths and associated leakage rates assumed in the accident analysis
during a Loss of Coolant Accident (LOCA).

"This event is being reported pursuant to 10 CFR 50.72(b)(3)(v)©.

"NRC Resident Inspector has been notified."

The breach consists of a tear in a flexible boot seal for a penetration associated with the suction path
for gas treatment fans.

There is no release of radioactive material associated with this event.



----------- [ 2019 event history for TN_WattsBar ]

20190612 | TN_WattsBar_1 | LOSS OF CONTROL ROOM EMERGENCY AIR TEMPERATURE CONTROL SYSTEM |
https://www.nrc.gov/reading-rm/doc-colle...ml#en54112

20190607 | TN_WattsBar_2 | Update PART 21 NOTIFICATION - INTROL POSITIONERS POTENTIAL LATENT DEFECT |
https://www.nrc.gov/reading-rm/doc-colle...ml#en54095

20190531 | TN_WattsBar_2 | PART 21 NOTIFICATION - INTROL POSITIONERS POTENTIAL LATENT DEFECT |
https://www.nrc.gov/reading-rm/doc-colle...ml#en54095

20190522 | TN_WattsBar_2 | MANUAL REACTOR TRIP DUE TO FAILURE OF MAIN FEEDWATER REGULATING VALVE |
https://www.nrc.gov/reading-rm/doc-colle...ml#en54077


20190516 | TN_WattsBar_2 | Exit RFO ( 33 / 26 )

20190423 | TN_WattsBar_2 | TEMPORARY LOSS OF CONTROL ROOM ENVELOPE BOUNDARY |
https://www.nrc.gov/reading-rm/doc-colle...ml#en54021
RFOD_011; RX Mode: Defueled; Defueled

20190413 | TN_WattsBar_2 | Begin RFO ( 01 / 26 )


20190416 | TN_WattsBar_1;2 | PART-21 NOTIFICATION - SNUBBER HYDRAULIC FLUID BATCH CONTAINS PARTICULATES |
https://www.nrc.gov/reading-rm/doc-colle...ml#en54001


20190209 | TN_WattsBar_1 | 100 %
20190203 | TN_WattsBar_1 | shutdown - no EN

20190122 | TN_WattsBar_1 | INVALID CONTAINMENT VENTILATION ISOLATION ACTUATION |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53840
[ 60 day report delay ]



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----------- [ Current event for


----------- [ 2019 event history for


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----------- [ Current event for


----------- [ 2019 event history for

[ no previous ENs for this site in 2019 ]
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----------- [ Current event for
----------- [ 2019 event history for
[ no previous ENs for this site in 2019 ]
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------------[ PART 21 ] - These ENs are for issues that involve multiple site/reactor units
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------------Other reactor info from daily power tracking https://www.nrc.gov/reading-rm/doc-colle...atus/2019/
-----------------------------------------------------------------------------------------------------------------

[  ]

Region 1

NJ_Hope_Creek_1 @ 99 % down from 100 % 20190620
[ on EN, unk reason for power drop. ]

MA_Pilgrim_1 @ 0 % - PERMANENT SHUTDOWN

NJ_Salem_1 @ 99 % up from 72 % up from 46 % up from 0 %
[ Exit RFO ( 67 / 28 ) ] RFO started early


Region 2

AL_Browns_Ferry_2 @ 97 % unch from 97 % unch from 97 % down from 98 % unch from 98 % up from 96 % Sunday; 96 % Saturday
[ Completed RFO ( 39 / 25 ) ] power uprate testing, missed planned restart date

NC_Brunswick_1 @ 77 % up from 57 % down from 59 % down from 100 % 20190618
[ no EN, unk reason for power drop ]

NC_McGuire_1 @ 100 % up from 99 % up from 98 % down from 100 % 20190618
[ no EN, unk reason for power drop ]

FL_Saint_Lucie_1 @ 30 % up from 1 % up from 0 % since 20190425
 AUTOMATIC REACTOR TRIP DUE TO TURBINE GENERATOR TRIP |
 https://www.nrc.gov/reading-rm/doc-colle...ml#en54027


Region 3  

IL_Clinton_1 @ 98 % down from 99 % up from 98 % unch from 98 % since 20190527
[ 98-99 % are this units normal thermal power range. ]


Region 4

AR_Arkansas_2 @ 0 % unch from 0 % since 20190527
 AUTOMATIC REACTOR TRIP DUE TO A REACTOR COOLANT PUMP TRIP ON GROUND FAULT |
 https://www.nrc.gov/reading-rm/doc-colle...ml#en54091

WA_Columbia_2 @ 18 % up from 15 % up from 8 % up from 2 % up from 0 %
[ Exit RFO ( 35 / 31 ) ] plnd start 20190515 ] started early  

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[ There is/are currently 00 unit(s) with the RPV OPEN - ref the 2019 Spring Refueling Outage Schedule and Status ]

posted by Staup Knewkinus a Dane Gerous production. All human rights reserved.
 
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NPS_Watch Jun 21, 2019 - Staup - 06-21-2019, 09:14 AM

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