05000280/LER-1978-042-03, /03L-0 on 781117:during Normal Pwr Oper,Manual Valves 1-BD-8,18 & 28 Closed in Attempt to Stop Leak in Svc Water Line,Resulting in Termination of Plow Thru Blowdown Radiat Monitors.Caused by Operator Error

/03L-0 on 781117:during Normal Pwr Oper,Manual Valves 1-BD-8,18 & 28 Closed in Attempt to Stop Leak in Svc Water Line,Resulting in Termination of Plow Thru Blowdown Radiat Monitors.Caused by Operator Error

ML18113A682
Person / Time
Site:	Surry
Issue date:	12/11/1978
From:	Baucom T VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18113A679	List: 05000280/LER-1978-039, Forwards LER 78-039/03L-0, 78-041/03L-0 & 78-042/03L-0 05000280/LER-1978-039-03, /03L-0 on 781115:during Normal Oper,Channel I of Pressurizer Level Instrumentation LI-1-459,drifted Low.Cause Unknown at This Time.Transmitter Recalibr 05000280/LER-1978-042-03, /03L-0 on 781117:during Normal Pwr Oper,Manual Valves 1-BD-8,18 & 28 Closed in Attempt to Stop Leak in Svc Water Line,Resulting in Termination of Plow Thru Blowdown Radiat Monitors.Caused by Operator Error
References
LER-78-042-03L, LER-78-42-3L, NUDOCS 7812140131
Download: ML18113A682 (2)

LER-1978-042, /03L-0 on 781117:during Normal Pwr Oper,Manual Valves 1-BD-8,18 & 28 Closed in Attempt to Stop Leak in Svc Water Line,Resulting in Termination of Plow Thru Blowdown Radiat Monitors.Caused by Operator Error

Event date:
Report date:
2801978042R03 - NRC Website

text

NP~.FORM.,J66

. (7-771 U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT.. e

.* CONTROL BLOC:K: I L I G)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI 1

6 fTITI Iv I A I 5.1 P I s I 1 101 ° I O I -1 ° 1° 1° I O I O I -1 ° I O 101 4 1 1 1 1 1 11

• 1101

• I I©

• 7 8

9 L.ICENSEE CODE 14 15 L.ICENSE NUMBER 25 26 L.ICENSE TYPE JO 57 CAT 58 CON'T [TII]

7 8. ~~~~~~ L..!J© I o I s 10 10 I o I 2 I 8 I o 101 1 I' 1 I 1 I 7 1 7 I 8 I© I, I 2 I, I, lz I s I@.

60

• 61 DOCKET NUMBER 68 69 EVENT CATE 74 75 REPORT CATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES {,a)

I Du.ring normal power operation, manuar' valves l-BD-8, 18, 28 were closed in an attempt I I to stop a leak.in a *service water line on which maintenance was being performed.

((ill.

Closure of these valves terminated flow through the blowdown radiation monitors

[]El....., ____...:..-____________

((TI]

(RM-SS-112, 113). This is contrary to technical Specification 3.11.A.6 and is reportable per Technical Specification 6.6.2.h.{2).

CAUSE

CAUSE COMP.

CODE SUBCODE COMPONENT CODE SUBCOOE

~@ ~@ 1v !A jL 1v jE ix I@. L:J@)

11 12 13 18 19 SEQUENTIAL.

OCCURRENCE REPORT REPORT NO.

CODE TYPE I I 1° 14 12J I/I 1° 13 I L.::_I 23 24

• 26 27 28 29 30 VAL.VE SUBCODE 12:J@

20 l=I 31 REVISION NO.

~

32

. TAKEN ACTION ON PL.ANT METHOD HOURS SUBMITTED FORM SU.B.

ACTION FUTURE EFFECT SHUTDOWN

~

ATTACHMENT NPR0-4 PRIME COMP.

SUPPL.I ER COMPONENT MANUFACTURER L!!J@~@ l!J@ l!J I o Io I o I I l.Ll@)

l!U@)

33 34 35 36 37 40 41 42 CAUSE DESCRIPTION AN.D CORRECTIVE ACTIONS@

DJ)) ] Operator error was the cause of the event.

Upon discovery of the discrepancy the W@

.43 I* V I 1 I 3 I S !@)

44 47 IIID immediate corrective action was to re-establish flow through the blowdown radiation o::::r:rJ,monitors as required by Technical Specifications.

IIII]

[IE]

7 B

9 FACIL.ITY

'3o' STATUS

% POWER OTHER STATUS \\:::;J [ill]~ 11 1° 1° l@I.... ___ NA_~-

8 9

10 12 l'l ACTIVITY CONTENT

~

REL.EASED OF RELEASE AMOUNT OF ACTIVITY ~

DJI] w @) ILI@I NA 7

8 9

10 11

.7 METHOOOi=

A DISCOVERY DISCOVERY DESCRIPTION ~

~@I..... _NA __ ~----------

45 46 80 44

.. L.OCATION OF RELEASE @

N __ A""-""---~---~------1

~

00 80 44 PERSONNEL EXPOSURES

~

NUMBER

(':;:;\\ TYPE DESCRIPTION~

ITiz] 1 ° 1 o Io JL!J@~ ___

NA_* ---------------~-------"'

7 8

9 11 12 13 80 PERSONNEL INJURIES Q

0 NUMBER OESCRIPTION6 NA ETIJ I I u I O I@"----*------~----------~~~-___.

1 a 9 11 12 LOSS OF OR DAMAGE TO FACILITY '43' TYPE

DESCRIPTION

\\::;:J [ill] l.LJ@

NA 7

8 9

1~0----~~--~------~--..;;;;..~--~--~--~-------~~----~--~~~-~~-----~~--~80

. BO PUBLICITY Q

NRC USE ONL y ISSUED/,;";;\\ DESCRIPTION~

• o ITliJ Ll!_l~.__ _______

N_A ____

""'.'"-" _______ ~ I I I I I I I I I I I L J ~

7 87 9812 11 Lill 13 (

T. L. Baucom 68 (s904) 357-3184 80

~

• _. ~

i'fAMt:'dF~EPARER PHONE:~----~------

~

........ (Attac.hment, page 1 of 1)

. Surr,~ Power Station,

• 1 Docket No,: 50-280 Report no: 78-042/03L-0 Event Date: 11/17/78 Title of Event:

Blowdown Radiation Monitors Low Flow

1. Description of Event

During normal power operation, manual valves l-BD-8, 18, 28.were closed

• in an attempt to stop a leak in a service water line on which maintenance was being performed" Closure of these valves terminated flow through the blowdown

• radiation monitors (RM-SS-112, 113). This is contrary to Technical Specifica-.

tion 3 "11.A. 6 and is. reportable per Technical.* Specification 6. 6. 2. b. *(?).

2.

Probable Consequences Flow through the blowdown radiation monitors was interrupted for four to five minutes. The backup radiation monitor in the discharge tunnel remained operational during this interrupted period.

Thus, the health and safety of the general public was not affected arid there are no consequences of this.event.

3.

Cause of Event*:*

Operator error was the cause of the event.

The closure of other valves could have provided leak isolation without interrupting flow to the blowdown radiation monitorso

4.

Immediate Corrective Actions~

Upon discovering the discrepancy, the immediate operator action was to re-estabiish flow to the blowdown ~adiation monitors as required by.Technical Specifications.

Sa Subsequent Corrective Actions~

Appropriate personnel have been re-instructed in* this matter.

6a Actions Taken to Prevent Recurrence:

None necessary.

7.

Generic Implications:

None