05000280/LER-2076-003, Re Non-Operable Condenser Outlet Valve
| ML19105A173 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 05/12/1976 |
| From: | Stallings C Virginia Electric & Power Co (VEPCO) |
| To: | Moseley N NRC/RGN-II |
| References | |
| Serial No. 021 LER 1976-003-00 | |
| Download: ML19105A173 (6) | |
| Event date: | |
|---|---|
| Report date: | |
| 2802076003R00 - NRC Website | |
text
[)~
.... ~
I I.....
.,/
. VIRGINIA. ELEOTRIO AND POWER 'COMPANY RIOHMON:~: VIRGINIA 23261 May 12,. 1976*.
t ':'"'li~0'1, Mr *. Nonnan. C~ Moseley, Di recto.~.,. o(f\\ffl h-1\\..
- _ :Serial No: 021.
Offi~e:.of ~n~pection ~?d. Enfo t e~tf'ILLUV:!u. 9.,. P0&1/ALH:jlf.*
_u. ~-'..;.. Nuc~~"1r.*_~e;gula~o~y p~. ioi}1AY:J 4*]g; }.,,:*,
Region II*. -,Su-ite.. 818 :.
us 76/Jj:b.
.*. ' :, Do~ket ~No'~. 50-281.*
230 'Pea~ht:ree.-'s_treet,* Nort:hwe ~~*-: *.: ~i~i~s1fg~uro4v. ' IQ' *,.'.License No *. DPR-37' Atlanta,;* Georgfa.
3Q303,
- ... ~"'-'-~ioa:
X ,,
/(~
- pear* M;. Moseley: * *
/ ?:::_7T\\~\\:*.
. Pursuant to Sur~y. Power Stat.ion Techiii~.al _Specification. 6.6.2, *the
. *Virginia* Electric. a."l.d, Power. Company hereby submits a copy o;!: *Reportable* Qcr;urfence,_ -~ * *
- Jc'.lo.* USRE-S2~76-03~.* *.. *
.. :.. " : : '. ~.
.<*,:* The substance of,.thi~:*.~ rep'ort ha~ p~~n ieviewed by th~ Stadon:N~clekr*,*,
- *Safety an.cf Operatitig:: Gormnit;:tee ~d will be* -placed on.:the agenda.for the next*
V *'
~e~ting of*.the System Nuclear Safety.-an~ Operating Comniit~ee.
' -'"> ;*,. _'l_,_--.
- *::.t;;;/?11.* *x&~;;~cd :
..... c. 1-c s t'.a{ liri~~ ': /./.. -, *..
. Vic,e,President'.'"Power Supply..
. and. Pto4uctic:i'n
- Operatio~s. ~--,--
t.JSRE-S2-76-03 CONTROL BLOCK: I LICENSEE EVENT REPORT 11 I I I. I
[.SE PRINT ALL REQUIRED INFORMATION)
LICENSEE NAME
@El lvl Aj sit:>. ls !2 I 7
8 9 14 CATEGORY REPORT TYPE.
1 6
LICENSE NUMBER I o I O I-lo Io Io Io Io 1-1 ° I O I 15 25 REPORT SOURCE DOCKET NUMBER LICENSE TYPE 14 Ii 11 Ii Io I 26 30 EVENT DATE
. EVENT TYPE Io 13 I 31 32 REPORT DATE
@E]coNT I MI 1 I 7
B 57 58 L!J L!J I ol sl Ol-1 ol 21s 11 j lol4!1l2l1l6I I ojs !o j6 j7 l61 59 60 61 68 69 74 1a ao
EVENT DESCRIPTION
~
!During normal 7
B 9
@@] !not operate.
7 8 9 loB operations, it was found that condenser outlet valve MOV-CW-200A would I
BO This is in violation of Technical Specification 3.7.
I 80 7
8 9 80 [a@~* ~-~----~-----------------~~~~-J 7
8 9 80 lfil§J L 7
89 ______________________________ _;_ _____________
8~0 PRIME COMPONENT SUPPLIER SYSTEM
CAUSE
CODE CODE COMPONENT CODE
@El lHJFI LL1 Iv IA 11 !vi~
7 8 9 10 11
- - 12 17 CAUSE DESCRIPTION Lu 43 COMPONENT MANUFACTURER IP!3ll~101 44 47 VIOLATION L£.J 48
~
!J;ondenser outlet valve MOV-CW-200A was throttled when it was found that it would not 7
8 9 I
80
~
i_g_pen or close.
The condenser inlet valve, MOV-CW~206A, provides additional assurance I 7
8 9
[@] I that the proper intake canal level will be maintained.
7 8 9 FACILITY STATUS EEl w
7 8
9 FORM OF
- -~
ACTIVITY lili1 RELEASED
~
7 8
9 PERSONNEL NUM9ER
% POWER OTHER STATUS Ltl_~
N/A 10 12 ~3 CONTENT OF RELEASE AMOUNT OF ACTIVITY w I N/A 10 11 EXPOSURES TYPE
DESCRIPTION
44 44 METHOD OF DISCOVERY
~
45 46 LN/A 45 80 This valve operated (continuedJ 80 DISCOVERY DESCRIPTION 80 LOCATION OF RELEASE 80 [ill] IJu__QJQJ L~
I_N/A
-"----------------------------------_J 7
B 9 11 12 13 80 PERSDNNEL INJURIES NUMBER
DESCRIPTION
EB I o I o I oJ L...l -----=N-'-'-/A=------
7 8 9 11 12 80 OFFSITE CONSEQUENCES i115] I N/A 7 8 9
- -----'--'--------------------------------------8..JO LOSS OR DAMAGE TD FACILITY TYPE
DESCRIPTION
rili. w N/A
_,J 7
8 9 10 BO PUBLICITY [ill]
N/A 7
8 9 80 ADDITIONAL FACTORS EJfil L:rhe health and safety of the public were not affected by this occurrence because 7
8 9 J
BO GJfil I the redundant valve would have closed.as required.
7 89
8-'0 PHONE: ( 804) 357-3184 GPO II O 1
- 6 6 7
I CAUSE DESCRIPTION (CONTINUED)
~~~~~-------
satisfactorily.
An investigation revealed that the limit switch compartment and the motor contained water.
The origin of the water could not be found.
The motor and limit $Witch were re-paired and the limit switch compartment was water-proofed. *The valve was then tested satisfactorily.
The remaining condenser outlet valves on both units will be_similarly water-proofed to prevent recurrence of this event.
- r
i
,.1 e
VIRGINIA ELECTRIC.AND PowER CoMPANY RIOBMOND,VIRGINIA 23261 May 12, 1976 Mr. Norman c. Moseley, Director Office of Inspection and Enforcement u. s. Nuclear Regulatory Connnission Region II - Suite 818 230 Peachtree Street, Northwest Atlanta, Georgia 30303
Dear Mr. Moseley:
Serial No. 021 PO&M/ ALH: j lf Docket No.
50-281 License No. DPR-37 Pursuant to Surry Power Station Technical Specification 6.6.2, the Virginia Electric and Power Company hereby submits a copy of Reportable Occurrence No. USRE-S2-76-03.
The substance of this report has been reviewed by the Station Nuclear Safety and Operating Connnittee and will be placed on the agenda for the next meeting of the System Nuclear Safety and Operating Connnittee.
Enclosure Very truly yours,
- - tf?, Jl>>.~a-~;r*
c. M. Stallings Vice President-Power Supply and Production Operations cc:
Mr. Robert w. Reid, Chief (40)
Operating Reactors Branch 4
USRE-S2-76-03 CONTROL BLOCK: I 1
LICENSEE EVENT REPORT 4t I I I I I I [PLEASE PRINT ALL REQUIRED INFORMAT!IJ~J LICENSEE NAME
,@E] I vi Al slI> Is 12 I 7
8 9 14 CATEGORY REPORT TYPE' 6
LICENSE NUMBER I ol ol-lo lo jo lo 1°1-1 °1 °1 15 25 REPORT SOURCE DOCK!;T NUMBER LICENSE TYPE 14 Ii 11 Ii Io I 26 30 EVENT.DATE
- EVENT TYPE Io 13 I 31 32 REPORT DATE
@IT!coNT I M ! I I u.l lJJ I O I s 1 01-1 0 I 21 s 11 I lo!411l2!1!6I I ols jo j6 j7 !6l 7
8 57 58 59 60 61 68 69 74 75 BO
EVENT DESCRIPTION
~
!During nonnal operations, it was found that condenser outlet valve MOV-CW-200A would I
7 8 9 80
!olsl !not operate.
This is in violation.of Technical Specification 3.7.
j 7
89
- -'--:C..~'----c__---------------=-----------~-------__l80
@El 7
8 9
~
7 8 9
@J§.1 7
8 9 SYSTEM
CAUSE
CODE CODE COMPONENT CO.DE
@El IH IF I Lu lv!Al1!v!E!x!
7 8 9 10 11 12
- 17.
CAUSE DESCRIPTION PRIME COMPONENT SUPPLIER
~
43 COMPONENT MANUFACTURER jPl3!4IOI 44 47 BO 80 80 VIOLATION L!J 48 Iola! I Condenser outlet valve MOV-CW-200A was throttle.cl when it was found that it would not j
7 8 9 80 lojsl !open or close.
The condenser inlet valve.1. MOV~CW-206A, provides additional assurance I 7
8 9 80 [I@J !that the proper intake canal level will be oaintained. 7 89
~---_.: _____ _js5 FACILITY STATUS
% POWER OTHER STATUS EE]
w lol9lJU I N/A 7
8 9
10 12 13 FORM OF ACTIVITY CONTENT rn RELEASED OF RELEASE AMOUNT OF ACTIVITY
~ ~I I N/A 7
8 9
10 11 PERSONNEL EXPOSURES NUMBER TYPE
DESCRIPTION
[@llololol w I N/A 7
8 9 11 12 13 PERS"ONNEL INJURIES NUMBER
DESCRIPTION
44 44 METHOD OF D!SCOVERY
~
45 46 N/A 45 DISCOVERY DESCRIPTION 80 LOCATION OF RELEASE 80 80 [iEj j O j O I ol
':::-I _ _ ---=:N~/A~ ______________
__:_ _____ _J 7
8 9 11 12 80 OFFSITE CONSEQUENCES (Iel N/A 7
8 9 80 LOSS OR DAMA3E TO FACILITY TYPE
DESCRIPTION
6EJ. uj =-----N=/_A ___
___:. ________ j 7
8 9 1G 80
.PUBLICITY (ili]
- -1 _ _ _ _ _ _
N_/A _______________________._--1J 7
8 9 80 ADDITIONAL FACTORS
~ l The ~altlL.fil:l,d safety of the public were not affected by this occurrence because 7
8 9
~ l the redundant valve would have closed.as required.
7 8 9 NAME:
E. M. Sweeney, Jr.
PHONE: (804) 357-3184 I
80 I
80 GPO O O 1
- 6 G 7
- :i,.
,v' OAUSE bESCRIPTION (CONTINUED) satisfactorily.
An investigation revealed that the limit switch compartment and the motor contained water.
The origin of the water could not be found.
The motor and limit switch were re-paired and the limit switch compartment was water-proofed *. The valve was then tested s-atisfactorily.
The remaining condenser outlet valves ori both units will be similarly water-proofed to prevent recurrence of this event.