ML051460304

From kanterella
Revision as of 22:59, 23 March 2020 by StriderTol (talk | contribs) (StriderTol Bot change)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Attachment to April 17, 2005 Event Notification Summary of Event
ML051460304
Person / Time
Site: Millstone Dominion icon.png
Issue date: 04/17/2005
From:
- No Known Affiliation
To:
Office of Nuclear Reactor Regulation
References
FOIA/PA-2005-0207
Download: ML051460304 (23)
v • d • e


Text

.?PR-17-2005 SUN 01:44 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 04 5{'& ° Attachment to Apri 17,2005 Event Notification Summary of Event At approximately 0830 on April 17, 2005 Millstone Unit 3 experienced an automatic reactor trip from full power. The Reactor is in a stable shutdown condition and is proceeding to Mode 5 cold shutdown. No release of radioactivity other than those minor releases associated with normal plant operation has occurred. There were no personnel injuries associated with the event.

In addition to the Reactor Trip, half-train Safety Injection (SI) and half-train Main Steam Isolation (MSI) actuations occurred. Control room personnel were successful at manually initiating full SI and MSI. SI has since been terminated and RCS pressure control has been restored. Multiple steam line safety valves (MSSV) lifted with at least one MSSV indicating a failure to reclose. As a result, an ALERT was declared at approximately 0853 due to the failure of at least one MSSV failing to reclose. All MSSV's are currently closed. Auxiliary Feedwater (AFW) actuated automatically as expected, however; the turbine driven auxiliary feedwater pump (TDAFWP) tripped on start-up and was subsequently reset locally.r Both motor driven auxiliary feedwater pumps (MDAFWPs) operated as expected to maintain steam generator water levels. Due to the additional inventory injected to the Reactor Coolant System (RCS) as a result of the SI actuation, the pressurizer filled and a primary system safety valve (PSSV) actuated at a lower than expected pressure. All PSSV's are currently closed, however; there is indication of leakage past either a PSSV or Pilot Operated Relief Valve (PORV). Upon alignment of the Charging system to Refueling Water Storage Tank recirculation flow path, 2 valves had indication of packing leakage. Those packing leaks have been terminated.

The cause of the event is under investigation.

lA/1'7/9Anlc CM 11-AZ r'rTDY fn nnflfl9 MnnA

APR-17-2005 SUN 07:27.e PM EOF EFI FAX NO. I P. 05

  • M 1f11 t.

V/bdR7 to April 17, 2005 Event Summary of Event ted time of the ALERT declarati one Unit 3 entered Mode 4 at app, event at Millstone Unit 3 was ter ler investigation. A recovery plal 04/17/2005 SUN 19:29 "TI/RX NO 9925] tOO5

APR-17-2005 SUN 01:47 PH MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 09 (LVI1S tWDommnyw NEWS RELEASE Release # 1 Date: 04-17-2005 Informationasof: 10:49 4-17-2005 DOMINION DECLARES ALERT AT MIULSTONE POWER STATION WATERFORD, Conn. - An emergency was declared today at Millstone Power Station Unit 3. An Alert, the second lowest of four emergency classifications used by the U.S.

Nuclear Regulatory Commission, was declared at 8:42 am.

Unit 3 has been shutdown and is in a stable condition. Federal, state and local emergency response agencies have been notified. An Alert ensures that additional emergency response personnel are on standby and ready to respond if necdd.

No release of radioactive material has occurred beyond those minor releases associated with normal plant operations. These minor releases pose no danger to the public or plant workers. The minor releases are below federally approved operating limits, below natural background levels and can not be detected at the site boundary.

Further information about conditions at Millstone will be provided as it becomes available.

As part of the Millstone emergency response plan, an Emergency Operations Facility has been activated at the nuclear station in Waterford, Connecticut.

The Millstone Power Station is owned and operated by Dominion.

04/17/2005 SUN 13:46 [T0X/RX NO 99231 E 009

APR-17-2005 SUN 01:43 PH HP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 02 Attachment 8 NRC Event Notification Form (Sheet 1 of 2)

NRC CONTACT (NAME) Bil 7 NRCEVENTNUMBER: 4\ &C07 NOllFICATION TIME FACILITY OR ORGANIZATION UNIT .SFCA LEPHONE NUMBER EVEhTTIML(ESTO+/-.ED-j) iEVNI DukiAJoriRIQ FPOWF.R (%) ndMQEODEi- 3 P-wER(io)anoRMODtAF-IFOREB TERJ EVENT 1-fir Non-Jnmiergency 4-Er Non-Emergency 8-Hr Non-Ernergency CIASSIFICATION 10 CFR 50.72 (b)(1) 10 CFR 50.72 (b)(2) 10 CFR 50.72 (b)(3)

GENERAL EMERGENCY TS Deviation (I 'TS Requirtd Shiut- (ii)(A) Dcraded Condition down SITE AREBA EMERGENCY (iv)(A) ECCS Discharge to (ii)(E) Unan.lyzed Condi.

RCS tion that Dogradew Safety XALER= 60 Day Optional (iv)(B) RPS Actuation (iv)(A) Specified System Ac.

k 10 CMR 50.73 (a)(1) (Scram) tuation UNUSUAL EVENT Invalid Specified Syetrn Ac- (xi) Offsita Notification (v)(A) Safe Shutdown Ca-tuation pabiliry 50.72NON-EMERGENCY (v)(B) RhiR Capability P14YSICAL SECURITY (v)(C) Control af Rad Re.

(73.71) lease MATERIALEXPOSURE (v)(D) Acddent Mitigation PITNESS FOR DUlY (xi) Offsic Medical OT14ERUNSFECIFIED RE- (xiii) Lost ENS QUIREMENT (IDENTIFY)

INFORMAIION ONLY (xiii) Lost Other Assess-ment/Otfsite Commxs (xiii) Emergency Siren OMHER UNSPECIFaID REQUIREMENT (IDENMiFY):

DESCRFIION: (iM in us available) 1.- (

2.

,YSTEM(S) AFITCrED, AC:TIAN T= IAc ; SAdIPm SIGN,

e h affApP htsu je<?0C_-M / rr P /S rA^ - 0 oW <carn /Iue RZfe-S50(1
3. CAUSES (IFKNOWN): i -

-Cou use /S ridle,- ,,i /ation

4. ECT OF EVENT ONPAN I WarcT s S arn Se e4, rlt/es l nar!4 ma SGfl, f e G i!D S. Ar1`OIS T4KEN OR FLAhNjED; frV C+ C)JO
6. ADDITONAL. INFO ufdON; G6 A-,,A- Ans IME _:KS Level of Use Ai RAC14 Reference - R 1 Rev. 001 - 04 98 Of 115 04/17/2005 SUN 13:46 [TX/RX NO 9923 1002

APR-17-2005 SUN 01:43 PH MP MANAGER PUBLIC INFO. FfAX NO. 860 437 2739 P. 03 Attachment 8 NRC Event Notification Form (Sheet 2 of 2)

NOTIPICATIONS YES INO WILLBE ANYTHINGUNUSUALORNOT YEsR NOC UNDERSTOOD? (EXPLAIN SHEET I)

NRC RESIDENT DID ALL SYSTEMS FUNCT'ION yp-j 0 NO g AS REQUIRED7 (EXPLAIN SHEET 1)

STATE MODE OF OPERATION UNTIL CORRECTED:

LOCAL ESTMATED ItESTART DATE:

OTHER GOV AGENCIES P"' APDm0NALINFOONBACK': YES C) NO EEK MIEDIARPRESS RELEASE -

RADIOLOGICAL RELEASES: CTECK OR FILL IN APPLICABLE WTAtS LIQUID GASEOUS UNPLANNED PLANNED ONGOING TERMINATED RELEASE RELEASE RELEASE RELEASE I MONITORED UNMoNrILRED OFFSrrE T. S. RM ALARMS AREAS

_ __R. EASE EXCEF ED EVACUATED PERSONNEL EXPOSED OR OFPFSrrE PROTECTIVE. ACTIONS State release path in description CONTAMINATED RECOMMENDED Release Rate T.S. LIMIT HOO GUIDE Totl %T.S. ILIMIT HOO GUIDE (CVhcc) Activity (Cl)

Nohle Ons 0.1 C0lsc 1000 Ci Iodine 10 pCilsec 0.0QC Particultae I ILClIec I MCI Liquid (excluding tridum J dissolved noble gases) 10 pCVLrnin 0.1 Ci Liquid (tritium) 0.2 CVziln 5c Total Activity PL4ANT STACK CONDENSER/AR MAIN so OTR EJECTOR STEAM LINE BLOWDOWN RAD MONITORREAD-INGS: l E/2____3__ I l__ _ _ __l_ _ _ _ _

ALARM SETPOINTS

% T.S. lIMIT (if applica-bla)

RCS OR SC TU1lE LLAKS: CHECK OR FILL IN APELICABLE ITEMS; LOCATION OF THE LEAK (cg.. SO#. valve, pipe, etc): C LFAIC RATE UNITS gpmigpd T. S. LIMTS; SUDDEN OR LONG-TERM l . l lDEVEILOPMENT LEAKCSTAPT DATE: COOLA~rACTIV1N I1NrrS. PXIMARY- SECONJ)ARY-TIME:

LIST OF SAFETY REL~ATED EQUIPMENT NOT OPERATIONAL-SM/DSEO Signature: 41i-r4--A 6'- , i4v3 Time:_ _

Level of Use l  : RAC 14 Reference ' K AG; RiEW Rev. 001-04 99o 1 04/17/2005 SUN 13:46 [TX/RI NO 9923] 0003

APR-17-2005 SUN 01:44 PM MP MANAGER PUBLIC INFO. FtAX NO. 860 437 2739 P. 06 OWf17/1iI5 S3:31 an RapidRoach roau: To: 37 263 9711 raget I

I I

04/17/2005 SUN 13:46 [TX/RI NO 9923] Ia006

-APR-17-2005 SUN 01:45 PH HP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P.07 Incident Report Form (ERF) qOTE: FOR ANINITIAL CLASSIFICATION O A CL4SSIFICATION CHANGE, COMPLETE ITEMS 1-8, AND 13 & 14. FOR lJPDATEMESSAGE, COMPLETEALL ITEMS 1-14.

IRF Number: Event Classification 1 20050460 Date: 04/17105 at 08:42 hoom. (militaryrime) 2 0 NOT a Drill C] Drill E] Comnmunications Drill (call in dnll only) 3 Initial Classication Classification Change 0 Update Li Terminated Event Incident aLioa; 4 L Milkone Unit I L Millstone Unit 2 0 MillsuineUnit 3 nidnt Clssification: posure Code:

O An Unusual Event [2 Delta - One Delta - Two D

0 AnAlert 0 Charlie-One O A Site Area Emergency a Charlie - Two El AGeneralfEmergeney rl Bravo . Alpha Radiological Releas Status.

6 0 No release 0 Ongoing release E] Tenninated release Mteorologicat atc 7 0* Currmt Site Wi& AtlOA45hours (militiy ime) fromthe 231 (SW) intothe (indca) 51 (NE) at 13mph (indepc)

C] Not Available Major PALHEadin BARIUERFALUR MinorEAL Heading: BA2 STEAM LrD BREAK 8 UnisolableStm LineBrekOutideCTMT AU Steam Generaor Safoties indicate closed at this time NOTE: COMPLETE TEMS 942 FOR UPDATE MESSAGES ONL Y.

...Rt- frf . -

10 a- =411=r r-tn ... ,;5 W N'NrMNt F-N-N fiRE~rr n _.__ ns 13 Fo ('.t use r * ,.vAntb t'"" .

13 Name: (Pernonfilligout report) 14 Message Anthorizcd forrcleasebyShiftManagrorflSEO jDate: Time:

W'-26&PI-EA?07-401 Rtv. 001-01 pipe ~oI C

ifdt 'IC

'kklK 04/17/2005 SUN 13:46 [TI/RX NO 9923] j007

APR-17-2005 SUN 01:46 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 08 RVI17tesS 13:11 RN lapidReach Trri: TO: 368 III 71 rage 1

"','04s

- 4:

N i

I I

)&-26EK-FAP07Wl Rcv. 001'01 PWc IQf 04/17/2005 SUN 13:46 [TX/RX NO 99231 0008

FAX NO. 4264 P. 04 APR-17-2005 SUN 07:27 PM EOF EP

f. ----t- iXN.424 i M nt to April 17, 2005Event OD Sununary of Event i At .mite P y 830 on April 17, 2005 Millstone U lit 3 e d an aut + reac r p from fill power. The Reactor is in a sI s own con and i$ p ceeding to Mode 5 cold shutdown. NO I lJe radi ty otie an those minor releases associate .will n'C . arit ope has occxed. There were no personnel inj ies otif Vitl the !It In . to eaptor Thp, half-rain Safety Inje
  • on ) I kfain Ma: It Isvi P(MSI) actuations occurred. Co ol Wo J ;nel wei c essfu a u lly initiating full SI and MSI: SI &i een d andjR . pressure control has been restore. [ti 1 i line te saf yaves ( V) lifted with at least one MSSV i di n fire to rec S s a rjs t, an ALERT was declared at apprc I due, to the i.of a I tone MSSV failing to reclose. AI'lM Vs C fclosep. { uiliary Feedwater (AFW) actuatI au: tit 1.

Ls ex e howfv the turbine driven auxiliary feedw1 ter i i1p FWP)

SiT C1;ur~-u tand was subsequently reset locally ;Bt 0o y oen au feedyat pumps (MDAFWPs) operated as xpe t I t Min ste f erat r ter levels. Due to the additional in entoi i I o the ssurizer Re "i r ool It stem (RCS) as a result of the SI a ati .i fill n ap system safety valve (PSSV) actuted I ao holl ex t lpres r AUl PSSV's are currently closed, IOW;l S in ti niof lt ge-past either a PSSV or Pilot Ope -te ci ye (P1?1 UTP pinment of the Charging system to e r St {e lankeccuation flow path, 2 valves had in Ca I) i Ig lec e aIo e cldng leaks have been terninated.

u e of i eet is under investigation.

ne . in nv 1a 1 IlI flAi17jbfnne snl'iTn rCTT>?1l~f M~rnYnnneI I~lnn*

OF EP FAX NO. 4264 P. 01 i

F

__ I I,

II I

i i I I

I I

I TRANSMITTAL SLI1 r

i I.

r -. . I - Is* Daatt .I o0 sill\ G>of-~

-ROM; b-av,, IDaorn tId 4' iI  :

for For -r Your I O As You Requestud ormatin For Your I 9cvommendation Tatc Appr opriJte Auion Me About ThiS

. .OPreaDreRiCtply For My inatwre XOMMENTS:

afr Your C)K (Pleas. Ruurjn)

O 0

0 For Frsig a'_

PI..ae. otea Nqto a d Rc r T-.. A Additi Ial In o is Rq sted Pte pleas rmuw.

ie at in I

II I

I I

i iI I

aG OLA,,,,#

5- A' co VeV-,

c c Il Ili

>1 -P e le 4 I

I I

I ID

.30 I I I II

,, I II~ A41

-f i/

I D.

C I.

0S425 Ii 1

I II I I I I 04/17/2005 SIIN 1 9: 29q rT XURT Nn qR7Sl anini

APR-17-2005 SUN 07:26 F'MEOF EP

-I El IfL FAX NC).4264

[:

P. 02 2 /9/6 _ _

Alekos AiY/o I ______________________

Attachment 8 NRC Event Notification Forim (Sheet 1 of 2)

NRC Cl 'A( 71 4 4.IEB.V/ 6.-*~ MV P I INT~

NRC.5v_ .

3 L O IZAnON l UNIT P IONE NULMER NOCO

_lE I 71 I I i 1 or on-Energncy

, 4- ki Non- Emergeni e CLASS O 0 CFR D so.72 (b)(1) [O CFR 50.72 (b)(2)i n1 GENETAL l Ts Deviation (i)Tn Rcq ECMS Dischargj 1

~o T

)()

J) 11' -I qkyed Condi-onditionI srrTER E(Y()(A)

ALER l PD4y Optional (iv)(B) "PSActuation ( ',) SstermAc.

X I CF SOx.73. (a)(1) (scram) ~;1)

~vaod speried Sysmcn Ac- (n) Ofst otufficti in A4 hutd.,wn Ca-N tRI-' I F0.biity 50.72 t40N _ R(

PHYSoICAl 1 I IV?( I e .L Rdy MATERI OUK ew Mitigation 1l Medical FITNESS t FI-(X IQU l NFORM OY . 4pnm

-~ti -

ssei.Sircn CrTR UNSI krEQUEM (iDENrFy):

DEvc1PiO S~lit~ie~)t .

fr ___ t- /WAf eit"eto I-o*SJ 4s ls ' u-3z CAUj j q. 4 -

I3 CAUS :tN JW e I tvbcz*r ) J1 11 _ _ _

4. -PV ON L11!.
  • de + Ico AO 3 __ __ __

L6 _v Nsa  !  :

1 ____

U' I j1 nceI R IV -04 M R k I~~~"I I 1I 1S1

j1 -~ ..

fl

-- -- r-I I!

I *-iH 11 I.

I" 04/17/gnn.c.

1/

11' q TV 10 . 90 rrry/Dy'yn nn.ei Mnnn

APR-17-2005 SUN 07:28 P1! EOF EP FAX NO. 4264

- til t I V'F P. 03

'I III

'I Itt-1:11

.1 E

Attachment 8

-r-

_1 .- *jI

'I NRC Event Notification Form I. (Sheet 2 of 2)

NOTIFICATIO l WILL BE ANYflIENG UNUSUAL OR NOT 0.tNDERSTOOD7 U!L S ,at l).

NRCRESID I DID ALL SYSTEMS FUNC_ ._

AS IREQtIRED? 'LAIN SHEET I)

SAT _ . MODE OF OPERATION UNTIL CtT LOCAL JESTIMATE I RESTART DATE; OTHER GOVA ADDITIONAL INFO ON BACK: ESlt MEDIA/1RESS S RADIOLOGIC ORF GSIN APPCABLE XTKS I1r LIQUID IRELEASE IA.SUO rwx AE1LE F t

UNPLANNM RELEASE I PLANNED REL}FASE I1 CT IN_I 1 1;

IERMIA1=

lMONIITO TIN .l l OFFSITE T. S. RT AP  ; AREAS RELEASE I XACIED 'I i I VACUA PERSO DOR OFFSITE PROTECrIVE ACTIONS ate rel _Irw CONTAM RECOMMDID P.mease Rat* %1LS. LIMIlT HOO QUI ToiLImi r oo GUIDE 11 1 (cvxcc) I.IdtAct~il I' 1l NobleG I3 1 CIsec 111 1i Iodine piM00c Pariculate - 1 7Ic I I MCI Liquid (exclu V+dso in gases) 0 gCmri Liquid (inum) 0.2 Cftrin Tomil Activity I _

FAT7CK;scoNDENsawtAIr mAIN am l1i I t -rsITwOR Mc l SL SA L BKpOS 1§1 RAD MO IA INGS: __ _ -z T 1 ALARM SET1

%T.S.11MIT itica I CS OR SG! a VCOS E (!:qCKV FILL IN APPLICA1IESCA1Z1Z3 LOC.ATIONO 0 W K (e~g., pipL):

PCt.jy LEAK PATE: Sgpu'Jgpd T. M1 I I 1-LEAK COOANTJ-Irrr.1 uwtT; Lai l 1'oNAY I I 1  : l,. ^ 1 _ _1 II I 1 __

LISTOFS L  !DE I:ATI NOTOPERLAYONAL; -

SM/DSE fpas re: - _ _ __ _ 1. '-0 I'

I it A

l III1: I.

1 11' .- +.

'I r

t 7"'c -tq) ,I e' L. .i #t'U 5.-

111i I I II I I I nA/i7/,)nnr, TTV in.-)n 1r"1V0"- :I- --- M---

APR-17-2005 SUN 01:44 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 05 (Crop y -

6,P -0 StmT I 0-,t-&1 I )6 TRANSMITTAL SLIP -

Date 4 1i-I TO: LD D a'.lJ FROM: MAtAI15 P owcr S4i=,hcr-,\ - = * \ rx Foe Your Information Q for Your signature For Your Rlecomnmeidatlon 0 Please Note and File O Take Aporoprlatc Acton 0 Note and Return To Me a Plcas: SaeMa AboutiThis Additional Information o Yoi Raquested As b3 Requested o Prepare Reply For MySignaturr 0 PleasoAnswor

  • For Your OK (Pease ftturn)

COMMENTS:

0S4{2s) 33 -G 04/17/2005 SUN 13:46 [TX/RX NO 99231 I 005

.APR-17-2005 SUN 01:43 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 01 TRANSMITTAL SLIP TO: Bo4 Dat' FROM: >bit/J o)0 n - Mtl t-2-S67-6E .POCOZ . _ &i_

v - ,,, cTA-T For Your Information D For Your Signature O For Your Recomniendatlon 0 Please Note and File O Talk Aoorowrlate Aetion a Note and Return To Me a PleseSea MnAboutrhia 0 Additional Information o AS You Requested is Requested O Prepaer Reply For My Signature Q Please Anuwer o For Your OK (Plese Return)

COMMENTS:

q pa 5eS IncluJd IM1 covet'"

301 -8(6-515-I 0S4?5 04/17/2005 SUN 13:46 [TX/RX NO 99231 21001

APR-17-2005 SUN 01:43 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 01 4t r i Mt LUS§ 3 A-LQf V TRANSMITTAL SSLIP Date 4 5-FROM: bVIjc ] tO\ - MI S7c6I0 POCOF. sv/oiSMT1 For Your Information C3 For Your signatur, o For Your Recommendation 0 Please Note and File o Take Appropriate Action 0 Note and Return To Me o Please Sea Me About This 0 Additional Information O As You Requested Is Requested o Prepare Reply For My algnature Q Please Anawer O For Your OK (Please Return)

COMMENTS:

q Pca5e$ In1cludil1n covec 301 7-916-5-15-1 Os4 25 04/17/2005 SUN 13:46 [TX/RX NO 9923] f001

'PPR-17-2005 SUN 01:43 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 02 Attachment 8 NRC Event Notification Form (Sheet 1 of 2)

NRC CONTACT (NAME) 86// C;0 4 NRC EVENT NUMBER: 4\ L°z NOTIFICATIONTIME FACILITY OR ORGANIZATION UNIT EOF -LEs LEPIONE NUMBER tA ~'\ r I, I .%" '.-wr. bc 4 4 zSJ EVEN[TTIESTORk(E1l) 1 EVENT DATE or IRFff POWER(%o)md MODE13E- PWER (io) and MODE AFl 0 eaqjO ZFORE

~

7zOcGC 44 16c 7b, Me)'0eF (TER

( MV O VLo3 EVENT 1-hfr Non-Emergency 4-Er Non-Emergency 8-Hr Non-Emergency CLASSIFICATION 10 CFR 50.72 (b)(1) 10 CYR 50.72 (b) (2) 10 CFR 50.72 (b) (3)

GENERAL EMERGENCY TS Deviation (i) TS Rcquirrd Shut- (ii)(A) Degraded Condition down SITE AREA EMERGENCY _(iv)A) ECCS Discharge to _(iD)(1) Unanalyzcd Condi-RCS tion that Dogrades Safety XALERT 60 Day Optional (iv)(B) RPS Actuation (iv)(A) Specificd System Ac.

10 CPR 50.73 (a)(1) (Scr) rtuation UNUSUAL EVENT Invalid Specified System Ac- (xl) Offsita Notificltion (v)(A) Safe Shutdown Ca-

_tuation __pability S0f72 NON-EMERGENCY (v)(B) RHR Capability PHYSICALSEcuRr SCRRadIT _. (v)(C) ContTol (7.71) es MATERIAL/EXPOSURE (v)(D) Accident Mitigation FITNESS FOR DulWY (xii) Offsitc Medical OTHER UNSPECIFIED RE- (xiii) Lost ENS QUIREMENT_( NFY)

INFORMATION ONLY (xili) Lost Other Assess-

__ent/Ofsite Comms (xill)Emergency Siren INOP OTHER UNSPFECIF REQUIREMENT (IlENIFM:

DESCRTIMON: (Fi Inus arailable) r_&ectC--rr

,' AFu cY honSA a- hoE- -

Etr S INSO-ekq 7ij ec]tIonJ o iaC 4>

2. AC.TuATIPNS & EONrNTrATO SIGN L-S:

,ene cb-'r 7r'1Q/sr74rW - Loww ecrnim q ee >-'esS.,ue

3. CAUSES (IF KNOWN):

C ao o se is ard ,cs-/lq7tIOr0

4. T EVENT WNT:IterE N
5. 'A1OrSTWENORPLA.D1 + _ /

Ie 2- r iI Ii > , A X' ,el- r re

6. ADDITIONAL INFO Level of Use i RAC 14 Reference Rev. 001-04 L AS
  • i,,,,  ; ^I 98 of 1 15 04/17/2005 SUN 13:46 [TX/RX No 9923] I 002

APR-17-2005 SUN 01:43 PH MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P.03 Attachment 8 NRC Event Notification Form (Sheet 2 of 2)

NOTIPICATIONS YES NO WILL BE AYTHING UNUSUALOR NOT YES d NO Q UNDERSTOOD? (EXPLAIN SHEET I)

NRC RESIDENT DID ALL SYSTEMS FUNC'lON YES 0 NO g

_ AS REQUIRED? (EXPLAIN SHEET 1)

STATE MODE OF OPERATION UNTIL CORRECTED:

LOCAL ESTIMAIED RESTART DATE:; hs W OTHER GOV AGENCIES _ APDmONAL INFO ON BACK: YES LO NO i MEDIA/PR=SS RELWEASE RADIOLOGICAL RELEASES; CHECK OR FJILL IN APPLICABLE ITEMS

_LIQUID GASEO US _ JIfLAlLNNlD PIANNED _ONGOLNG _TER)AINATED RELEASE RELEASE RELEASE RELEASE MONITORED UNMONITORED OFPFSIT1E T. S. RM ALARMS AREAS

__ REIEASE EXCEEDED EVACUATED CONTAMINATED RECOMENDED Releasc Rate '1T.S. LIMIT GUIDE Totl MIOO  % T.S. lIMIT HOO GUIDE (CU5Sce) Activity (Ct)

Noble Gas 0.1 Ci/sec low Ci Iodine 10 ici/sec 0.01CI Particulate I pCl/sec I mCi Liquid (excluding nidum & dlmsolved noble gases) WCir/wn 10 0.1 Ci Uquid (tritium) 0.2 Ci/mIn 5 Ci Total Activity PLANTSTACK CONDENSER/AIR MAIN SG OTERI EJECTOR STEAM LINE BLOWDOWN RAD MONITOR READ-INGS: I L Z1 4-.3 9 ~-4 ________ __ __ __ __ __ __ __

ALARM SETFOINTS

% T.S. IJMIT (if applica.

ble)

RCS OR SC TUBSE LEAKS: CHECK OR FILL IN API'LICAILE ITEMS:

LOCATION OF THE LEAK (cg.. SC#, valve. pipe, etc):

L-KPAl l UNITSAgpTngpd T. S. LIMITS; SUDDEN ORLONG-TERM DEVELOPMENT LEAK START)DATE- COOLANrACTIVITY&UNrlS- PAMARY- SECONDARY-TIME:

LIST OF SAFETY RELATh EQUIP>MENTNOTOPERATIONAL:

SM/DSEO Signature: (4. 1 /4V Time: It -iG Level of Use . RAC 14 Reference  ?; "; A9'-

Rev. 001-04 99 of 115 04/17/2005 SUN 13:46 MTM/RX NO 99231 I003

APR-17-2005 SUN 01:44 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 04 Attachment to April 17, 2005 Event Notification Suimmary of Event At approximately 0830 on April 17, 2005 Millstone Unit 3 experienced an automatic reactor trip from full power. The Reactor is in a stable shutdown condition and is proceeding to Mode 5 cold shutdown. No release of radioactivity other than those minor releases associated with normal plant operation has occuned. There were no personnel injuries associated with the event.

In addition to the Reactor Trip, half-train Safety Injection (SI) and half-train Main Steam Isolation (MSI) actuations occurred. Control room personnel were successful at manually initiating full SI and MSI. SI has since been terminated and RCS pressure control has been restored. Multiple steam line safety valves (MSSV) lifted with at least one MSSV indicating a failure to reclose. As a result, an ALERT was declared at approximately 0853 due to the failure of at least one MSSV failing to reclose. All MSSV's are currently closed. Auxiliary Feedwater (AFW) actuated automatically as expected, however; the turbine driven auxiliary feedwater pump (TDAFWP) tripped on start-up and was subsequently reset locally. Both motor driven auxiliary feedwater pumps (MDAPWPs) operated as expected to maintain steam generator water levels. Due to the additional inventory injected to the Reactor Coolant System (RCS) as a result of the SI actuation, the pressurizer filled and a primary system safety valve (PSSV) actuated at a lower than expected pressure. All PSSV's are currently closed, however; there is indication of leakage past either a PSSV or Pilot Operated Relief Valve (PORV). Upon alignment of the Charging system to Refueling Water Storage Tank recirculation flow path, 2 valves had indication of packing leakage. Those packing leaks have been terminated.

The cause of the event is under investigation.

nA/17/9nll R5TN 1.RiA WrISPY fl O9z1 wn innA

APR-17-2005 SUN 01:44 PH MP HANAGER PUBLIC INFO. FAX NO. 860 437 2739 P.05 CoP C '

6QF-0 StM AiT CYy -I (,)1s TRANSMITT AL SLIP Oat, . Li Li iar TO: L~roz FROM: MA I s-~. PCu:cr S&rtCra - 3 V\ TV 1 For Your I nformation 0 for Your Slgrnatursr For Your tec nmmendatlon Q Pleae 14Note and File o Take ApproPrlate Action Q Notc and Return To Mt o Pleasec Mm AboutThl# Additional Information oA You Requested is fleuastad ol Prepare fcply For My Signature Please Answer o For Your OKC(PiPac Return)

COMMENTS:

Phk+/- ( 1o) 3-6r) - S-6 (--

oS42s 04/17/2005 SUN 13:46 [TX/RX NO 9923 ] Ia005

APR-17-2005 SUN 01:44 PM MP MANAGER PUBLIC INFO. FAfX NO. 860 437 2739 P.06 OMU71 25 S ;31 pit RapIdReach rram.: To: Hs 537 t711 rPae I Incident Report Form (IRF)

I 4P4-2GlP-FAQ7.OO Pap OOI.1 Puv I a 04/17/2005 SUN 13:46 S[TX/R NO 99231 Q006

APR-17-2005 SUN 01:45 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P.07 Incident Report Form (11W) 0 TE: FORANINTlm4L CLASSIFICATION OR A CLASSIFICATION CHANGE, COMPLETEI

,r VsrUO V fl A tf V-

  • I _ rf A , S O A rr r A rr r rrr t V V .W A2 tM.. 1-4, AlA 41 4t l .. ru VKuri tA I~l i3.AtzC, L(JVtL~Lll LL.. l1 fl fl& 1-14.

IRFNumber Event Classification 1 20050460 Date: 04/17/05 at 02-42 hours. (militarytime) 2 0 OTa Drill LiDrill [1Commnunications Drill. (call in drill only)

C3 niti Classification O Classification Change 5C Update [l Terminated EBit Incident I~atio 4 El Millstone Unit 1 Millstone Unit 2 hfillstone unit 3 Indent Classification: Poshre Code o An Unusual Event I] Delta -One Delt - Two 5 0 An Alert Charlie -One 5 A Site Area Emrgency Charlie - Two 12 A Cenera] Emergency Bravo a Alpha 6 Radiologicl Rlease Statusl 6 0 No release a Ongoing release El Terminated release MeworologicalData.

7 0 Cuntnt Site Wind: At 045h hours (militcy time) from the 231 (SW) into the 051 (NE) at 13 mph (in dq3c) (mdegc.)

O Not Available orFALHeadin4. BARRIUERFAILURE Mior EAL Heading: BA2 STEAM LNE BREAK S Unisolable Steam Line Break Outside CTrMT AUl Steam Generator Safeties indicate closed at this time NOTE: COMPI LETEMMS 9-12 FOR EPDAEMESSAGES ONLY.

_____ -~ ~~~ -jr tL5' r 9 II II i

61 10 R'=MR _,, ba.

1 I

7 1 , =

I 10 44 r 45 -, t 4 fl . Sh.z:4aw 0 I

12 _=IE.M" o.

13 (For Name:site usc only)

Wegonf g o t) 14 Message Autirizcd for rlase by Shift Mnager or DSEO l elTime:

onad 13~ 4 (Fo sit use W-26"l-PtAP07-00 RCv. 00tw0

  • 1_ 1A 04/17/2005 SUN 13:46 [TX/RX NO 99231 007 j

fPR-17-2005 SUN 01:46 PH MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P.08 1111712185 Wll Rn ImpidRlsoh rrust To '666 '137 E71t rag# I I

I W2-U-I AP07-001 RCV. 001o0 Pyne I ofI 04/17/2005 SUN 13:46 [TX/RI NO 9923] Ia008

,APR-17-2005 SUN 01:47 PM MP MANAGER PUBLIC INFO. FAX NO. 860 437 2739 P. 09

( L, Seri ZDrnn;nioii NEWS RELEASE Release #I_

Date: 04-17-2005 Information as of: 10:49 4-17-2005 DOMINION DECLARES ALERT AT MILLSTONE POWER STATION WATERFORD, Conn. - An emergency was declared today at Millstone Power Station Unit 3. An Alert, the second lowest of four emergency classifications used by the U.S.

Nuclear Regulatory Commission, was declared at 8:42 a.m.

Unit 3 has been shutdown and is in a stable condition. Federal, state and local emergency response agencies have been notified. An Alert ensures that additional emergency response personnel are on standby and ready to respond if needed.

No release of radioactive material has occurred beyond those minor releases associated with normal plant operations. These minor releases pose no danger to the public or plant workers. The minor releases are below federally approved operating limits, below natural background levels and can not be detected at the site boundary.

Further information about conditions at Millstone rill be provided as it becomes available.

As part of the Millstone emergency response plan, an Emergency Operations Facility has been activated at the nuclear station in Waterford, Connecticut.

The Millstone Power Station is owned and operated by Dominion.

04/17/2005 SUN 13:46 [TX/RYC NO 9923] 0oos

Retrieved from "https://kanterella.com/w/index.php?title=ML051460304&oldid=2674047"