05000280/LER-2076-015, Re Leakage of Water from a Recirculation Spray Heat Exchange Piping
| ML19105A130 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 11/05/1976 |
| From: | Stallings C Virginia Electric & Power Co (VEPCO) |
| To: | Moseley N NRC/RGN-II |
| References | |
| Serial No. 308 LER 1976-015-00 | |
| Download: ML19105A130 (3) | |
| Event date: | |
|---|---|
| Report date: | |
| 2802076015R00 - NRC Website | |
text
,,..,
.'(
- ~-
.* '.-',:?Lf[AJOfnronr~f{r1:, c*,:1 "*.
.. *_.J
- ~.-._._.- **
~~-
9 ~
1lstJlf;_-:.L_
,.r~* *1t'11(J1,~
)* Lt.~t~. (~i/;:\\ 1°l:;.* *
\\.* S,Y'J',
°VI:e:GI~:rA: ELEcT*~uo 'AN~-;~~'WEH:- GoMPA:NY.'.
Mr.* Norman c. Mosel~y~ 'Director>-.
Offi<:!e of Inspection and*Enfor~ement U.S.: Nuclear* Regttlatocy.. Commissi_on R~gion II* - _Suite* 818.*.. _ --~.
230 _ Peachtree Street, *. Northwest _
Atlanta,' Georgia:.
30303 _.-* -
Dear Mr. -~Ioseley: -
_ ~erial
- 1'f6.-.308
- PO&M/ ALH: clw
.Docket *No~ 50-28 i License i~o.* ---DPR~37-
- .. *Pursuant**to:Surry Power Station Technic~l Specif.ication* 6.6*.n:z, the Virginia El~ctric and Power Company hereby stibmits'a -copy of.ticeiis~e Event
- Reijort* USRE-S2--76~15. _ _
- - The.substance of thi~.'repott*i1as),een-'r:evie't~ed by the Station Nuc.l~ar
-. Safety* and Opcirating :committee-.and_,.;:i.fl-be pl1;1,ced *o,n the. ~geti.da-for the next IIie,e,t:ing*o:f *the System. Nuclear Safety_ and.op*e.ratiri.g Committee. -
I
- \\ '
,:) _v.e/ry :t.ruly yours*,
. ': ~.;,
.. ~ ?J!?.'xff~;.rv:
- . * :' _.~-.:. ~** Co :,,.i:*1 *
. Stallings_.*.. ; *.-
-., Vice Preisid~nt:..Power Supply*
and.- P;i::oduction Operat-ibns._ *
. - ~*.
,*:~......
.. : Enclo~hre':;
- J.
- - _cc:* *.. 1,ir. Robe*~1:.. yi. (eld',Cl;i~f
- -.
- Op~:i;ating Reactors B_ra.µch 4_
- . *. (40. cppies USRE~s2:..tE1+is).
?-:.
I
.. *I
e LICENSEE EVENT REPORT e USRE-S2-76-15
- CONTROL BLOCK: I 1 I I I I I I [PLEASE PRINT ALL R_EQUIRED INFORMATION]
LICENSEE
. NAME
' @EJ I V IA IS I P I S j 2 I 7
8 9 14 CATEGORY REPORT TYPE.
6 LICENSE NUMBER I oj o!-lo lo!olo!o!-lo lo I 15 25 REPORT SOURCE DOCKET NUMBER LICENSE TYPE 14111111101 26 30 EVENT DATE EVENT TYPE I O I 3 I 31 32 REPORT DATE
@IilcoNT I Ml I I 7
8 57 58
~ L!J I o I s J o 1-1 ° I 21 8 11 I I 1 I ol ol 61 116 I I 1 11 lo I 3 I 1 I 61 59 60 61 68 69 74 75 BO
EVENT DESCRIPTION
[filgJ jWith Unit No. 2 7
8 9 at cold shutdown, leakage of water was observed from "A" recirculation I jol31 lspray heat exchanger piping.
Further visual inspection and dye 80 penetrant examinations I 7
8 9 joj41 I revealed 7
8 9 indications of cracking in the heat affected zones of several welds.
jol5j !event is reportable per Technical Specification 6.6.2.b(4). (USRE-S2-76-15) 7 8 9 lfilID 7
8 9 SYSTEM CODE
@El ls!nl 7
8 9 10
CAUSE
CODE
~
11 CAUSE DESCRIPTION COMPONENT CODE IP jr I ~ El xi xJ 12 17 PRIME COMPONENT SUPPLIER
~
43 COMPONENT MANUFACTURER I z I 9 I 9 I 9 I 44 47 VIOLATION
~
48 This
~
jThe apparent cause of failure was chloride stress corrosion in Type 304 stainless 7
8 9 jo!sl jsteel piping.
Further investigation is being performed on Unit No. 1 and Unit No.
80 I
80 I
80 80 80 2, I 7
8 9 E@J I since 7
8 9 80 both units utilize a similar arrangement for the recirculation spray *system (contj) 80 FACILITY STATUS
% POWER OTHER STATUS EEi w
Io I o I o I N/A 7
8 9
10 12 13 FORM OF ACTIVITY CONTENT rn RELEASED OF RELEASE AMOUNT.OF ACTIVITY w
WI N/A 7
8 8
10 11 PERSONNEL EXPOSURES NUMBER TYPE
DESCRIPTION
44 44 METHOD OF DISCOVERY w
45 45 DISCOVERY DESCRIPTION N/A 46 80 LOCATION OF RELEASE N/A 80
~
IO I O I 01 w
.....___N-"--/ A ______________________
__a 7
8 9 11 12 13 80 PERS"OI\\JNEL INJURIES NUMBER
DESCRIPTION
EE] IO I O I 01
.___N/_A _______________________ ~
7 8 9 11 12 80 DFFSITE CONSEQUENCES iilij N/A 7
8 9 LOSS DR DAMAGE TO FACILITY TYPE
DESCRIPTION
lili. ~
N/A 7
8 9 10 PUBLICITY El?]
N/A 7
8 9 ADDITIONAL FACTORS E@J I The health and safety of the general public were not affected.
7 8 9 fill 7
8 9 NAME: ___
T.a..y_n_d_a_l_l_L_._B_a_u_c_o_m ____________ PHONE:
80 BO 80 80 80 (804) 357-3184 GPO 881*667
e CAUSE DESCRIPTION (convt) piping.
The extent of affected piping, the degree of damage, and the necessary repairs have not been completely evaluated at this time, and will be the subject of a future update report.
Repairs as necessary will be accomplished prior to placing the units back into service. ---1
.-. *--,*1,*1,;. -