05000249/LER-1980-019, Forwards LER 80-019/03L-0

Forwards LER 80-019/03L-0

ML17192A702
Person / Time
Site:	Dresden
Issue date:	05/14/1980
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17192A703	List: 05000249/LER-1980-019, Forwards LER 80-019/03L-0 05000249/LER-1980-019-03, /03L-0:on 800420,during Switch Calibr Surveillance,Target Rock Relief Valve Press Switch PS-3-203-3A Tripped Below Tech Specs Limit.Caused by Setpoint Drift.Switch Readjusted within Tech Specs Limit
References
80-408, NUDOCS 8005230497
Download: ML17192A702 (3)

LER-1980-019, Forwards LER 80-019/03L-0

Event date:
Report date:
2491980019R00 - NRC Website

text

.J* * *~.\\!, C>) Commonwe.. Edison 1*'

~

• Dresden Nuclear Power Station R.R. #1

~Morris, Illinois 60450 Telephone 815/942-2920

.Ds8

---

~------~- -- --

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--------- -May r4-,-r9-ffO ____ ----- -----------------:----

BBS LTR #80-408 James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear. Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 Reportable *O'ccurrence Report ll80-19/03L-0, Docket f/050-249, is being sµ~mitted to your office in accordance with Dresden Nuclear Power Station Technical Specification 6.6.B.2.(b), conditions leading to operation in a degraded mode permitted by a limiting condition for operation or plant shutdown r'equired by a limiting condition f~r operation.

BBS:lcg Enclosure cc:

Director of Inspection & Enforcement Director of Management Information & Program Control File/NRC MAY 21 1980 ~~\\I

y RC FORM 366

~-77)

-- ** -*-* ----:***--- **-- -.. -... U.S. NUCLEAR REGULATORY COMMISSION

.i-i.,CON;R*OL BL't>CK:

~

I rl LI nl RI sl B

9 LICENSEE CODE

- CENSEE EVENT REPORT I IG) 6 I

{PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 3101 o I o I - I o I o I o I o I o 1-I o I o 101 4 11 11 11 11 101 I

I 0 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 EID

~~~~; ~©I 0 I 5 I 0 I 0 I 0 I 2 I 4 I 9 101 0 I 4 I 2 1 _o I _

8_ I -~ l©J 0 J} 11 I ~. I 8 I 0 10_ --- - -

___ !l____ -- - --

- --61-- - ----

- DOCKET-NUMBER*-

... 68-- -.-EVENT DATE

• 74 75 REPORT DATE 80 EVENT DESCRIPTION A":'D PROBABLE CONSEQUENCES@

~

I During refueling outage while performing target rock relief vlv press switch calibr.a-1 four electromatic relief valves would have operated at their specified setpoints.

Similar event:

R.O. 78-020/03L-O.

£TIJ 8 9 80 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SU8CODE COMPONENT CODE SU8CODE SU8CODE [ill 1c 1c I@ ~@ LI@* 1 II NI s1 Tj RI u1@ w@ w@

8 9

10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION

@' LERIRO LVENTVEAR REPORT NO.

CODE*

TYPE NO.

REPORT I 8 I 0 I l.=.J 10 11 19 I I/I I o I 3 j w

L=J w

NUMBER 21 22 23 24 26 27 28 29 JO 31 32 ACTION FUTURE EFFECT SHUTDOWN

~

ATTACHMENT NPRD-4 TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORM SUB.

PRIME COMP.

SUPPLIER COMPONENT MANUFACTURER tu@~@ L2.J@ W 10 10 10 10 I lE.J@

l!J@

33 34 35 36 37 40 41 42

~@ I DI 21 4 I 3 I@

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

43 44 47

~

I The cause is attributable to instrument setpoint drift.

PS-3~203-3A was innnediately

IlJJ readjusted to within Tech. Spec limits, and* tested for repeatability.

The electro-

I))J matic relief Target Rock Valve pressure controll"ers will continue to be tested during

!J)) I each refueling outage to verify compliance with Tech. Specs.

rm 8

9 FACILITY IJQ\\

STATUS

% POWER OTHER STATUS v::;:J UD L.!!J@>' I 0 I 0 I 0 l@i-1 _ ____;.N/_A __ ~

8 9

10 12 13 44 ACTIVITY CONTENT Q\\

h";jRELEASED OF RELEASE AMOUNT OF ACTIVITY ~

~

LLl@ W@L-1 __

.::NA.;__ ____

~

8 9

10 11 44 PERSONNEL EXPOSURES r:::;;...

METHOD OF A

DISCOVERY DISCOVERY DESCRIPTION ~

l.!J~I Refueling Surveillance 45 46 45 LOCATION OF RELEASE @

NA 80 80 80 NUMBER

~TYPE

• DESCRIPTION~

[TI] jO jO IO j(0~@)L-__ __;;N=A-------'----------------...i 8

9 11 12 13 80 PERSONNEL INJURIES Q

NUMBER DESCRIPTION~

~

IO IO IO 1@)1.-______

~NA;;;._ ___________________ _.

8 9

11 12 LOSS OF OR DAMAGE TO FACILITY '43" TYPE

DESCRIPTION

i.:::.::J [ill~@

NA 80 8

9 10 80 PUBLICITY

(.;\\

NRC USE ONLY ISSUE Dr,;-:;\\ DESCRIPTION~

~

llLJ~...._ _____ ~NA=---~----------~ LI I I I I I I I I I I I!

8 9

10 68.ti_9 ".2 c.

.)41.n..d x,Sn.er.o.f f

.A :

g 80* c;

DEVIATION REPORT

., Commonwealth Edison *

~D~V~R~N~O-. __ _,.;,,, ______...._ ______ -.

STA UNIT YEAR NO.

D -

12 -

3 -

80 -

34 PART 1[TITLE OF DEVIATION Target Rock Valve 203-3A Out of Tech. Specs. 1% Tolerance SYSTE/v'* AFFECTED 203

PLANT CONDITIONS

PWR(MWT) 0

---Main--Steam ---- - -- ---

-~-- ------Mooe Shutdown

DESCRIPTION OF EVENT

OCCURRED 4-20-30

.DATE

~ -----

LOAD(MWE) 0 0943 TIME ri:JJl_!'J~ - --

YES NO Found trip point at 1098 psig (Includes 10 psig water leg).

Tech. Spec limit 1115 + 1% psig.

DESCRIPTION OF GAUSE Instrument drift OTHER APPLICABLE INFORMATION Readjusted to 1122 psig and verified repeatability EQUIPMENT DYES FAILURE CJil NO DR NO.

N/A WR NO.

N/A PART 2 I OPERATING ENGINEERS COMMENTS W. E. Hildy RESPONSIBLE SUPERVISOR 4/22/80

_DATE This setpoint drift was discovered during normal refueling.outage surveillance, and readjusted prior to startup.

SAFETY-TYPE OF DEVIATION EVENT OF POTENTIAL TECH SPEC NON-REPORTABLE ANNUAL RELATED REPORTABLE OCCURRENCE PUBLIC INTEREST VIOLATION OCCURRENCE REPORT! NG WR ISSUED D 14 DAY D 10CFR21 YES(]

YES D

~

30 DAY NOTIFICATION D

D D

NO D NO GJ 6.6.B.2.b REPORTABLE CCCURRENCE ACTION ITEM NO.

PROMPT ON-SITE NOTIFICATION NUMBER R.M. Ragan 4/23/80 10:30

~-

80--19/031..-o TITLE DATE

.TIME TITLE DATE TIME 24-HOUR NRC NOTIFICATION PROMPT OFF-SITE NOTIFICATION DTPH F. Palmer 4/23/80 11:40 REGION I I I DATE TIME Tl TLE DATE TIME DTGM J. Gilliom 4/23/80 11:40 REGION I I I & DOL DATE TIME TITLE DATE TIME RESPONSIBLE COMPANY OFFICER INFORMED OF 10CFR21 TIME CONDITIONS AND THEIR REPORT TO NRC ACCEPTANCE BY STATION REVIEW AS REOU I RED DATE RESOLUTION APPROVED AND AUTHORIZED FOR DISTRIBUTION 86*5171'-

10-77 (FORM 15*S2*t)

TITLE DATE

_4/23/'f)O _

DATE

¢tjto DA E