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NPS_Watch May 15, 2018
#1
The Daily Dose - Exposing the nuclear power industry while the nuclear power industry exposes you.


There are 5 EN(s) today, 1 associated with power stations.

 

NRC Event Notices for May 15, 2018         
https://www.nrc.gov/reading-rm/doc-colle...515en.html

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

----------- [ Current event for MD_CalvertCliffs_1 ]

20180514 | MD_CalvertCliffs_1 | SALTWATER SYSTEM NON-CONFORMING WITH LICENSING BASIS FOR TORNADO GENERATED MISSILES |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53401

"On May 14, 2018, during evaluation of protection for Technical Specification (TS) equipment from the damaging effects of a tornadogenerated missile, Calvert Cliffs identified a non-conforming condition in the plant design such that specific TS equipmentis considered to not be adequately protected from a tornado generated missile.

A tornado could generate a missile that could strike the Unit 1 Saltwater system header and associated piping.

This could result in damage to the unit 1 Saltwater system header which could affect the ability of the Unit 1 Saltwater subsystems toperform their design function if such a tornado would occur.

"This condition is reportable per 10 CFR 50.72(b)(3)(ii)(B) for any event or condition that results in the nuclear power plant being inan unanalyzed condition that significantly degrades plant safety, and per 10 CFR 50.72(b)(3)(v)(D) for 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 condition is being addressed in accordance with NRC enforcement guidance provided in EGM 15-002 and DSS-ISG-2016-01.

Compensatory measures have been implemented in accordance with these documents.

"The NRC Resident Inspector has been informed of this notification."

[ Operating since 1975 and they are just realizing that wind born objects could cause a problem. ]


----------- [ 2018 event history for

20180308 | MD_CalvertCliffs_1;2 | DEFECT REGARDING CERTAIN PRESSURE TRANSMITTERS AND AMPLIFIER CIRCUIT CARD ASSEMBLIES |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53263






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

Region 1


NY_Fitzpatrick_1 @ 50 % up from 48 %, no EN, reason for power drop unk.

NJ_HopeCreek_1 @ 93 % up from 66 % ; 35 % ; 20 %  ; 6 % ; 3 % RFO restart ( used 27 of typ 22 )

NY_NineMilePoint_2 @ 17 % up from 4 % RFO restart ( used 27 of typ 22 )

MA_Pilgrim_1 @ 50 %, no EN, reason for power drop unk. [ clunker, 380 days to permanent shutdown. ]

PA_susquehanna_1 @ 100 % up from 96 % ; was dropped to 66 % on Saturday.  RFO Completed ( used 32 of typical 35 )



Region 2

AL_Browns_Ferry_2 @ 100 % up from 60 % ; 92 % ; 41 % ; 23 % ; 0 %. 4 days SD, no EN, reason for SD unk. day 3

AL_Browns_Ferry_3 @ 87 %  since APR 13 ( used 45 of typ 43 days )
[ This unit has not been able to achieve full power since exiting RFO Apr 03 ]

SC_Catawba_2 @ 100 % up from 65 %, no EN, reason for power drop unk, exited RFO Apr 14.

AL_Farley_1 @ 47 % up from 2 % ; 1 % ; 18 % ; 13 %  RFO restart ( used 32 of typ 22 )
[ may have briefly shutdown Saturday. Restart problems. ]



Region 3


MI_Cook_2 @ 78 % u pfrom 77 % ; 49 % ; 45 % ; 12 %, recovering from SD during RFO restart ( used 59 of typ 90 )

MI_Fermi_2 @ 87 % ; 87 % ; 87 % ; 87 %  90 % ; 88 % ; 42 % ; 0 % restart from 22 days down
AUTOMATIC REACTOR SCRAM AND EMERGENCY CORE COOLING SYSTEM INJECTION |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53336



Region 4

AR_Arkansas_1 @ 0%   RFO ( used 44 of typ 35 )
[ no EN. Sudden full power ( 05/07 ) then SD ]

LA_Riverbend_! @ 94 % down from 100 % ; 63 %, dropped to 63 % Sat., no EN, reson for power drop unk.

[ There are currently 1 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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