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NPS_Watch Mar 06, 2019 - Printable Version

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NPS_Watch Mar 06, 2019 - Staup - 03-06-2019

The Daily Dose - Exposing the nuclear power industry while the nuclear power industry exposes you.

There are 2 EN(s) today, 1 associated with power stations.

[   ]

NRC Event Notices for March 06, 2019 |
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20190306en.html

[  ]

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----------------- Power Reactor Event Notices
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----------- [ Current event for NC_Brunswick_2 ]

20190305 | NC_Brunswick_2 | AUTOMATIC ACTUATION OF THE PRIMARY CONTAINMENT ISOLATION SYSTEM |
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20190306en.html#en53911
RFOD_004; RX Mode: Refueling; Refueling

"At 05:35 Eastern Standard Time (EST) on March 5, 2019, with Unit 2 in Mode 5 at 0% power,
an actuation of the Primary Containment Isolation System occurred
during hydrolazing of the reactor water level variable leg instrumentation line nozzle N011B in the reactor cavity.

The hydrolazing activity caused low reactor water level to be sensed on Division II of the shutdown range level instrumentation.

Per design, the low level 1 signal resulted in Group 2 (i.e., floor and equipment drain isolation valves),
Group 6 (i.e., monitoring and sampling isolation valves) and Group 8 (i.e., shutdown cooling isolation valves) isolations.

"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A)
as an event that results in a valid actuation of the Primary Containment Isolation System.

"There was no impact on the health and safety of the public or plant personnel.

The Group 8 was reset and shutdown cooling was restored at approximately 05:45 EST.

"The safety significance of this event was minimal. Although there was a brief interruption of the shutdown cooling, the Residual Heat Removal (RHR) shutdown cooling system operation was restored in approximately 10 minutes without extensive troubleshooting or maintenance, and remained operable. The RHR shutdown cooling system is not credited in any Updated Final Safety Analysis Report Chapter 6 or 15 accidents or transients.

"The NRC Resident Inspector has been notified."


----------- [ 2019 event history for NC_Brunswick ]


20190302 | NC_Brunswick_2 | Begin RFO (    / 25 )

20190131 | NC_Brunswick_1;2 | Update PART 21 - COMPONENTS PROVIDED AS SAFETY-RELATED SPARE PARTS WITHOUT BEING DEDICATED |
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20190201en.html#en53816

20190107 | NC_Brunswick_1;2 | PART 21 - COMPONENTS PROVIDED AS SAFETY-RELATED SPARE PARTS WITHOUT BEING DEDICATED |
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20190108en.html#en53816

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----------- [ Current event for
----------- [ 2019 event history for
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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 year. ]
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------------[ PART 21 ]
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----------------- Other reactor info from daily power tracking
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Region 1
 
MD_Calvert_Cliffs_2 @ 0 % [ RPV OPEN ( 17 / 22 ) 20190218 ]

NY_Nine_Mile_Point_1 @ 86 % [ coastdown to RFO 20190320 ]

NJ_Oyster_Creek_1 @ 0 % [ RPV CLOSED , defueled , permanent shutdown ]

NJ_Salem_1 @ 83 % [ coastdown to RFO 20190426 ]

PA_Susquehanna_2 @ 85 % [ coastdown to RFO 20190323 ]


Region 2

AL_Browns_Ferry_2 @ 0 % [ RPV OPEN ( 05 / 25 ) ]

NC_Brunswick_2 @ 0 % [ RPV OPEN ( 05 / 28 ) ]

GA_Hatch_2 @ 0 % [ RPV OPEN ( 31 / 20 ) ] [ 20190204 shutdown early ]
[ passed planned restart date ]

NC_McGuire_1 @ 97 % [ coastdown to RFO 20190323 ]

VA_NorthAnna_2 @ 0 % [ Begin RFO 20190303 ( 04 / 36 ) ]
 PART 21 - EATON A200 STARTERS DID NOT OPEN WHEN POWER WAS REMOVED |
 https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20190212en.html#en53867

SC_Oconee_1 @ 65 % down from 75 % down from 100 % Monday
{ no EN, unk reason from power drop ]

FL_Turkey_Point_4 @ 98 % down from 100 % Sunday
[ coastdown to RFO 20190311 ]

GA_Vogtle_2 @ 91 % [ coastdown to RFO 20190310 ]


Region 3

IL_Clinton_1 @ 98 % unch from 98 % Sunday;
[ units normal operating range ]

MI_DC_Cook_1 @ 0 % [ Begin RFO ( 01 / 90 ) 20190306  ]

IL_La_Salle_2 @ 0 % [ RPV OPEN ( 17 / 35 ) 20190218 ]

MN_Monticello_1 @ 84 %  [ coastdown to RFO 20190413 ]

OH_Perry_1 @ 73 % [ coastdown to RFO 20190309 ]

IL_Quad_Cities_1 @ 91 % [ coastdown to RFO 20190318 ]


Region 4

CA_DiabloCanyon_1 @ 0 % [ RPV OPEN ( 25 / 33 ) ]

LA_RiverBend_1 @ 75 % unch from 75 % Saturday
[ coastdown to RFO 20190329, coastdown breakdown ]

LA_Waterford_3 @ 0 % [ RPV OPEN ( 61 / 39 ) ]
[ passed planned restart date ]

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[ There is/are currently 7 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.