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NPS_Watch Jun 04, 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 June 04, 2018    
https://www.nrc.gov/reading-rm/doc-colle...604en.html
[]
----------------------------------------------------------------------------------------------------------------------------------------------------
----------------- Power Reactor Event Notices
----------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------

----------- [ Part 21 Notice ]

PART 21 NOTIFICATION - FAILURE OF RELAYS TO CHANGE STATE

The following report was received via a fax:

"Identification of Basic Activity: Eaton NBF66F Relay

"Basic Activity Supplied By: Framatome Inc.

"Nature of Defect:
While performing analysis on AC Eaton NBF relays, Framatome discovered that,
unless a specific application technique is utilized while applying epoxy to the pin within the crossbar,
the potential for the epoxy to become foreign material is introduced.

This foreign material could migrate to the area between the moving and stationary magnets,
preventing the relay from completing its change of state when called upon.

This condition does not occur in the de-energized direction.

Framatome has not been notified of any occurrence of this condition.
A different epoxy application technique was utilized between 2008 and May of 2013 on relays provided to
HB Robinson (the only customer requiring the epoxy application by Framatome).

Thus, a potential for this defect is limited to those relays provided during that time period.

"Defect Determination Date: This issue was determined to be a 10 CFR 21 defect on May 31, 2018.

"Number and Location of Basic Components:
307 potentially affected safety related relays with epoxy applied to their relay pins were supplied to the H.B. Robinson nuclear plant.

"Corrective Actions to Date: The application process was reevaluated and revised in 2013.

"Advice related to the Defect:
Framatome is working to provide advice to the customer on the path forward related to this defect."

----------------------------------------------------------------------------------------------------------------------------------------------------
----------- [ Current event for NJ_Salem_2 ]

20180601 | NJ_Salem_2 | TORNADO MISSILE VULNERABILITIES |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53438

"During the period of evaluation of tornado missile vulnerabilities and the potential impacts to technical specification (TS) plant equipment,
it was determined that the power cables to a safety related motor control center (MCC) in the service water (SW) intake structure are not adequately protected from tornado generated missiles.

During walk downs, it was identified that the installed SW pipe tunnel barrier is not adequate.
A tornado could generate missiles capable of striking the power cables and rendering a SW MCC inoperable.

"These conditions are reportable per 10 CFR 50.72(b)(3)(ii)(B) and per 10 CFR 50.72(b)(3)(v)(D).

"This condition is being addressed in accordance with NRC enforcement guidance provided in Enforcement Guidance Memorandum (EGM) 15-002,
'Enforcement Discretion for Tornado-Generated Missile Protection Noncompliance,'
 Revision 1, and DSS-ISG-2016-01, 'Clarification of Licensee Actions in Receipt of Enforcement Discretion per Enforcement Guidance Memorandum EGM 15-002,
Enforcement Discretion for Tornado- Generated Missile Protection Noncompliance,'
Revision 1. Compensatory measures have been implemented in accordance with these documents.

"The NRC Resident Inspector has been notified."

The licensee will be notifying the Lower Alloways Creek Township.

----------- [ 2018 event history for NJ_Salem ]

20180523 | NJ_Salem_1;2 | PART 21 - WEAR OF THERMAL SLEEVE IN WESTINGHOUSE CONTROL ROD DRIVE MECHANISMS |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53422

20180507 | NJ_Salem_2 | MANUAL REACTOR TRIP |
https://www.nrc.gov/reading-rm/doc-colle...ml#en53386



--------------------------------------------------------------------------------------------------
----------- [ Current event for
----------- [ 2018 event history for
--------------------------------------------------------------------------------------------------
----------- [ Part 21 Notice ]
----------------------------------------------------------------------------------------------------------------------------------------------------
----------------- Other reactor info from daily power tracking
-----------------------------------------------------------------------------------------------------------------

Region 1


NY_FitzPatrick_1 @ 100 % dropped to 70 % Saturday, no EN, reason for drop unk.

PA_Peach_Bottom_2 @ 100 % dropped to 58 % Saturday, no EN, reason for drop unk.

PA_Susquehanna_2 @ 100 % dropped to 81 % Saturday, no EN, reason for drop unk.

NJ_Salem_1 @ 99 % down from 100 % Sunday, may be related to EN posted today or associated with last months emergency shutdown.



Region 2


AL_Browns_Ferry_3 @ 92 % up from 90 % since Saturday
[ Unit has not been able to achieve full power since exiting RFO Apr 03 ] ( used 45 of typ 43 days )

NC_Brunswick_1 @ 55 % up from 52 % Satuday, no EN, reason for drop unk.

AL_Farley_2 @ 100 % up from 98 % Saturday : 60 %, no EN, reason for drop unk.

VA_Surry_1 @ 100 % RFO restart complete ( used 40 of typ 25 )



Region 3


IL_Byron_2 @ 92 % up from 76 % Sunday, no EN, reason for drop unk.

IL_Dresden_3  @ 100 % dropped to 75 % Saturday, no EN, reason for drop unk.

IL_La_Salle_2  @ 100 % dropped to 84 % Sunday, no EN, reason for drop unk.

OH_Perry_1 @ 100 % dropped to 83 % Sunday, no EN, reason for drop unk.




Region 4

AR_Arkansas_1 @ 97 % ; RFO restart ( used 44 of typ 35 )
[ unit is struggling to achieve full power after RFO ]

WA_Columbia_2 @ 65 %  - transformer problem

NE_Cooper_1 @ 0 %, no EN, reason for drop unk.

LA_RiverBend_1 @ 83 % up from 67 % Sunday, dropped to 64 % Saturday, n EN, reason for drop unk.

MS_GrandGulf_1 @ 0 %, RFOD_058 of typical 50, overdue for RFO restart.


----------------------------------------------------------------------------------------------------------------------------------------------------

[ There are currently 0 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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