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NPS_Watch Apr 18, 2018
#1
The Daily Dose - Exposing the nuclear power industry while the nuclear power industry exposes you.


There are 3 EN(s) today, 2 associated with power stations.

NRC Event Notices for April 18, 2018         
https://www.nrc.gov/reading-rm/doc-colle...418en.html

-------------- Power Reactor Event Notices
--------------------------------------------------------------------------------------------------



----------- [ Current event for PA_Limerick_1 @ 15 % RX Mode: Power Op ]

20180417 | PA_Limerick_1 | HIGH PRESSURE COOLANT INJECTION SYSTEM DECLARED INOPERABLE
https://www.nrc.gov/reading-rm/doc-colle...ml#en53341

"Unit 1 HPCI [High Pressure Coolant Injection] was declared inoperable due to a Main Pump seal leak that was identified during surveillance testing.
Unit 1 HPCI was declared inoperable at 1030 EDT. HPCI was secured and was manually re-aligned to an available status."

At the time of this notification, repairs have been completed and the licensee is making preparations to re-perform the surveillance.

The licensee has notified the NRC Resident Inspector.

[ This happened as the unit was exiting RFO ]

----------- [ 2018 event history for PA_Limerick ]

20180416 | PA_Limerick_1 | exit RFO
20180326 | PA_Limerick_1 | Begin RFO

[ There are no other ENs for this unit ]


----------- [ Current event for AL_BrownsFerry_1 @ 100 % RX Mode: Power Op ]

20180417 | AL_BrownsFerry_1 | HIGH PRESSURE COOLANT INJECTION SYSTEM INOPERABLE |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53340

HIGH PRESSURE COOLANT INJECTION SYSTEM INOPERABLE

"At 0416 CDT on April 17, 2018, the High Pressure Coolant Injection System (HPCI) was isolated due
to a water side leak from the gland seal condenser.

Unit 1 HPCI remains inoperable pending repairs to the gland seal condenser.

"This condition is being reported pursuant to 10 CFR 50.72(b)(3)(V)(D), 'Any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.'
This is also reportable as a 60-day written report in accordance with 10 CFR 50.73(a)(2)(V)(D).

"There was no impact on the health and safety of the public or plant personnel.
The NRC Resident Inspector has been notified of this event."

----------- [ 2018 event history for AL_BrownsFerry ]

20180403 | AL_BrownsFerry_3 | Exit RFO

20180329 | AL_BrownsFerry_1;2;3 | UNANALYZED CONDITION DUE TO INOPERABILITY OF EMERGENCY EQUIPMENT COOLING WATER PUMP |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53300
[ AL_BrownsFerry_1;2;3 @ 100;100;0 RX Mode: PO;PO;Cold Shutdown ]

20180322 | AL_BrownsFerry_1;2;3 | Update PART 21 - UNDERSIZED PACKING GLANDS IN CERTAIN CRANE GATE VALVES |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53246
[ This EN is missing as of 04/18/2018 ]

20180318 | AL_BrownsFerry_1 | AUTOMATIC REACTOR SCRAM DUE TO TURBINE CONTROL VALVE CLOSURE |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53269

20180316 | AL_BrownsFerry_1;2;3 | UNANALYZED CONDITION AFFECTING RESIDUAL HEAT REMOVAL SYSTEM |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53267
[ AL_BrownsFerry_1;2;3 @ 100;100;0 RX Mode: PO;PO;Refueling ]

20180307 | AL_BrownsFerry_1;2;3 | NOTIFICATION OF UNUSUAL EVENT DECLARED |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53247
[ AL_BrownsFerry_1;2;3 @ 100;100;0 RX Mode: PO;PO;Refueling ]

20180306 | AL_BrownsFerry_1;2;3 | Update PART 21 - UNDERSIZED PACKING GLANDS IN CERTAIN CRANE GATE VALVES |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53246

20180217 | AL_BrownsFerry_3 | Begin RFO

20180110 | AL_BrownsFerry_3 | AUTOMATIC REACTOR SCRAM DUE TO TURBINE CONTROL VALVE FAST CLOSURE SCRAM SIGNA |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53162


-------------
 
[ While working up this report I discovered the NRC Event Notice Log is missing some entries. ]
https://www.nrc.gov/reading-rm/doc-colle...323en.html

[ Orig list of ENs for posting date 20180323 was ]

53277 | GA_Vogtle_3;4 | FITNESS FOR DUTY TEST SUBVERSION | https://www.nrc.gov/reading-rm/doc-colle...ml#en53277

53276 | IL_LaSalle_1 | TECHNICAL SPECIFICATION REQUIRED SHUTDOWN DUE TO PRESSURE BOUNDARY LEAKAGE | https://www.nrc.gov/reading-rm/doc-colle...ml#en53276

53264 | City: PASADENA State: TX  | RADIOGRAPHY SOURCE STUCK IN SOURCE TUBE | https://www.nrc.gov/reading-rm/doc-colle...ml#en53264

53246 | City: BOLINGBROOK State: IL | Update PART 21 - UNDERSIZED PACKING GLANDS IN CERTAIN CRANE GATE VALVES | https://www.nrc.gov/reading-rm/doc-colle...ml#en53246
        [ units affected: MA_Pilgrim_1, NE_Cooper_1, AL_BrownsFerry_1;2;3, NC_Brunswick_1;2 ]


[ as of 20180418 the only entry for that date is ]

53264 | City: PASADENA State: TX  | RADIOGRAPHY SOURCE STUCK IN SOURCE TUBE |https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2018/20180323en.html#en53264


-----------------------------------------------------------------------------------------------------------------
----------------- Other reactor info from daily power tracking

Region 1



PA_Limerick_1 @ 23 % up from 7 % restarting ( used 21 of typ 26 )

MA_Pilgrim_1 @ 1 % [ 401 days to permanent SD ]




Region 2

AL_Browns_Ferry_3 @ 85 % up from 83 % recovering from shutdown while Restarting, No EN. used 45 of typ 43 days for RFO.
[ This unit has not been able to achieve full power since exiting RFO Apr 03 ]

VA_NorthAnna_1 @ 74 % up from 47 % restarting ( used 34 of typ 29 )



Region 3

MI_Fermi_2 @ 0 % 4th day down
AUTOMATIC REACTOR SCRAM AND EMERGENCY CORE COOLING SYSTEM INJECTION |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53336


Region 4



[ There are currently 12 units with the RPV open - ref the Current ReFueling Outage Schedule and Status ]


posted by Staup Knewkinus a Dane Gerous production. All human rights reserved.
 
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