ML18139B302

Updated LER 80-037/03X-1:on 800711,while Performing Periodic Test 26.1,radiation Monitor RM-SV-111 Found Inoperative. Caused by Spare Lug Short Causing Erroneous Indications. Lug Removed.Monitor Returned to Svc

ML18139B302
Person / Time
Site:	Surry
Issue date:	05/07/1981
From:	Joshua Wilson VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139B300	List: ML18139B299 ML18139B301 ML18139B302 ML18139B303
References
LER-80-037-03X, LER-80-37-3X, NUDOCS 8105120486
Download: ML18139B302 (2)

Text

~ ~ O R M ,,, ~ , , ,/ * ' *~-"" "'J ~p,s "isi*F*°'-;;;,;<c;;c;_, ~s:'iiUi:w<R'RliGliiJ.Tbih',,.,;;,,.iSS10N'-;,_ -:- **

I

'I

• t

"~DATE REPORT-PRE'.VIOUS CONTROL. Bt.OCK: I I I I I 1. 10

&'r1Y>f~iifEo8Yo~!lEPORT IP1.EASE PRINT QR TYPE ALL REQUIREC INFORMATION)

• e*

• 1 6 CIT!]

ii I V I A I s I p I s I 1 101

s 0 I O I -, 0 I OI OI 9 L.IC&NSEE COCE 14 L.ICSNSE NUMBER 01 0 I -I 01 0 25 .

101 4 11 J 1 I l I 1 101 ' I I © 29 L.ICENSi TYPE ;IQ

• 57 c.i.T SS CON"T ...

[iliJ  :~~~ !Ll©I 01 Sj 01 01 01 21s101010 11 11 11 !s lo l©I 0 1 Sj 01 *11 Bj-,1 1@'"

7 8* . . 50.. 61 COCKiT NUMBER 68 59 EVENT CATS 74 75 REl'OR'T 0A,"' 80

• 'eveNi-"Sa~ci:i:,;;,.,o*N ANO PROSASL..e CONSEQUENCES @

((II] While* performing Periodic Test 26. l, Radiatign Monitor BH:SY-J JJ was found to J;,e inoperative. This is contrary to Technical Specification 3. 7 .E Table 3. 7-5 and is

((ill! reportable as per Technical Specification 6.6.2.b.(4). The re1.ease limits of_Technici_l_

Specification 3.11.A were not exceeded. The health.and safety of the public were J

[§JI] not affected. I CIII]

iil]J 1 a g 80 SYSTEM* CAUSE. C:.:.USE COMP. VALVE coce COMPONEN'T coce.

[ill]

7 B 9

.. CQCE

,M ,c 10

, 1!.J@

11 SUBCCD!

LI , I 12 13

,N, s ,T , R , u ,e 18 SUBCODE w@

19.

suecooe*

w@

20 SEQUENTIAL* OCCURRENCE REPORT REVISIQN L.EAIAO" ['.EVENT YEAR* REPORT NO.* CODE. TY,e NO.

@ N'i;~:; *21' 8 I O22I 1-L 23 I O I 3 I 726I 24, l27.....-1.

IO 2S I 329I LLI 30 1=J 31 w

32 ACTION FUTURE EFl":C'T SHUT'COWN ~ ATTAC>4MENT NPRD-4 . PRIME C:CMP; CQMPONEN."'.

TAKEN ACTION ON Pl.ANT MET),IQD HOURS' ~ . SUBMITTED . FORM IIUB. $.IP,UEA MANUFACTURER W@W@ W 32 34 3S W

Iii 37

!,o Io Io*! o I t.!J@. L!J W@ '* I v 1* 1 I 1 I s I@

40 41 42 43. 47.

CAUSE OESCAIPTION ANO CORFIECilVE ACilONS @

[JJ]J I A spare lug on the monitor shorted the 16

• volt power supply causing erroneous

[I!Il I indications. The lug was removed* and the monitor returned to service.

OI~J *1.------------------------------------------

ITID

'cr::r3J' 7 a s'---------------------------------------------------------------

FACtLI,..,. t.;;::\30 METMOD OF t,;:;\

so STATUS "'POWER . OTH!R STATUS. '..::::,, CISCOVERY DISCOVERY CESCJ'IIPTION ~

tmJ L!J@} ! l I O I O l@I..._N_./_A_ _ _ _ _j l.LJ@la.....~Ro;;;,;;u_t.:;in:.;.;e;;....;:.;Te;;;.o';s;..:;;t.:..

' 8 9 10 12 1l 44 45 . 48. 80 ACTIVI,..,. CONTENT ,Q\ t,;:;\

AELiASi!C OF AEL!ASE . AMOUNT OF ACTIVfTY \::J .LOCATION OF RELEASE ~

OJI] W@ WI ' .N/A ' I I NIA 1 a* g 10 11 " 46 80 PERSONNEL ex,osuRES 1-:\

t.::::\ TYl'E ~ OESCRl"10N ~

ITII1 ! 0 I O j O ,~u.J~"------.t..:.N1..:.A;..._

NUMHR 1 a s 11 12 1:i 80 P!!ASONNEL. INJURIES I'.'.:':'\

IIIUMBEl'I ~ OESC1'111'T10N~

, as CIJI] ! 0 I O ! 0*11, ~"'1:_ _ _ _ _ _ _ _ _

L.QSS OF OR DAMAGE TO FAQU'N '43'

...;.;..:.;.;~--------------------------~eo N/ A .

T'YPE DESCRIPTION . '..::::;

+id:,9 LJ;;Z;j@~*----*..._,*. . . . _.______.......,;*N..:,/_,A_.* - - - - - - - - - - - - - - - - - - - - -

' a 9 ,o ea 7 8 SI PUIILICrl'V tmJ 1ssueot,;':;\_oesCR.*P"TioN L!!Jei ____________

10

,-:':\

~

N.._'.._A_____________ 68 II I!IIII E19 NFIC use ONL y I I I I ao ;

I!

\IA.ME oi: ;ta:;, ~i=IE~ __"J_.__L__* _w=u=s_o_n____________  :"'"CM:: ......( .. 80_4__)___3_5_7_-_31...8_4_ _....__ ~

,J~.~'.l-~.-il ffie.Q~(p_.* _ .:.....:*.-:**,*, . ::*.** ~*_,~,',,:"'\.:>c.h 0> ..* -~'- ,.*. .;.::; ~--~....... :;~-~-* ............... .

-~-------

.. *:.:*.:..,;-_,~:*.* **;:*::

e e "UPDATED REPORT-PREVIOUS REPORT DATED 08""'.06-80 ATTACHMENT l -(PAGE l of 1)

SURRY POWER STATION, UNIT 1 DOCKET NO: 50-280 *'

REPORT NO: 80-037/JJ3X-l EVENT DATE: 7-11-80 TITLE OF EVENT: RADIATION MONITOR (RM~sv~111) "INOPERATIVE

1. DESCRIJ;'TION OF *EVENT:

While perfonning PT-26 .1, (Air* Ejecto:r Discharge Monitor), RM-SV-111 was found to be inoperative. This is contrary to Technical Specification 3. 7 .E Table 3.7-5 and is reportable as per Technical Specification 6.6.2,b.(4).

2. PROBABLE CONSEQUENCES AND

• STATUS OF *""REDUNDANT *SYSTEMS:

The release limits delineated in Technical Specification 3.11.A and 10 CFR 20 were not exceeded. The health. and safety of the pu6lic were not affected.

There is no redundant monitor.

3. CAUSE:

The radiation monitor failed because a wire lug- shorted the terminals- for the 16V power supply.

Y! ,,-. . ~

4. IMMEDIATE CORRECTIVE ACTION:

Health Physics sampled the Air Ejector discharge and found it within the limits of Technical Specification 3.11.A. The monitor was repaired and returned to service.

5. SUBSEQUENT CORRECTIVE *ACTION:

• :No!l~~ ~~-ons!_d~!~_d_;_;_!:.c~s~aE_y: *

6. ACTION TAKEN TO PREVENT RECURRENCE:

The Periodic Testing program is* designed t.o locate this type of failure in a timely manner, therefore, no further action is required.

7. GENERIC IMPLICATIONS:

None.

• ----- -*- -~----- ******-**-~-*-~~