ML17192A702

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: ML17192A702 ML19323E404
References
80-408, NUDOCS 8005230497
Download: ML17192A702 (3)

Text

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• Commonwe. . Edison Dresden Nuclear Power Station R.R. #1

~Morris, Illinois 60450

.Ds8 Telephone 815/942-2920

---

~------~- -- -- -------- --------- - May r4-,-r9-ffO____ ----- -----------------:----

BBS LTR #80-408 James G. Keppler, Regional Director Directorate of Regulatory Operations - Region I I I 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 ...: , ....____-.-*- ------- *-------- -- ***- - **- - -- ** -*-* ----:***--- **-- - .. - ... U.S. NUCLEAR REGULATORY COMMISSION

~-77)

... . .i-

-CENSEE EVENT REPORT i.,CON;R*OL BL't>CK: I I IG) 6

{PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

~ I B 9 rl LI nl LICENSEE CODE RI sl 3101 14 15 o I o I - I o I o I o I o I o 1- I o I o 101 LICENSE NUMBER . 25 26 4 11 11 11 11 101 LICENSE TYPE 30 I

57 CAT 58 I 0 EID

___ !l____ -- -

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0I 5 I 0

- --61-- - ---- -DOCKET-NUMBER*-

I 0 I0 I 2I 4 I9 101 0 I 4

... 68--

I 2 1_o I _8_ I -~

- .-EVENT DATE

• l©J 0 J}

74 75 11 I REPORT DATE

~. I 8 I0 80 10_ --- - -

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

@' REPORT LERIRO LVENTVEAR REPORT NO. CODE* TYPE NO.

NUMBER I8 I0 I 21 22 l.=.J 23 10 11 19 24 26 I I/I 27 I28 oI 3 j 29 w

JO L=J 31 w

32 ACTION FUTURE EFFECT SHUTDOWN ~ ATTACHMENT NPRD-4 PRIME COMP. COMPONENT TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORM SUB. SUPPLIER MANUFACTURER tu@~@

33 34 L2.J@

35 W

36 10 10 10 10 37 40 I lE.J@

41 l!J@

42

~@

43 I

44 DI 21 4 I 3 I@

47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

~ 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 80 FACILITY STATUS  % POWER OTHER STATUS IJQ\

v::;:J METHOD OF DISCOVERY DISCOVERY DESCRIPTION ~

A UD L.!!J@>' I 0 I 0 I 0 l@i-1_

8 9 10 12 13

____;.N/_A_ _~

44 l.!J~I Refueling Surveillance 45 46 80 ACTIVITY CONTENT

• Q\

h";jRELEASED OF RELEASE AMOUNT OF ACTIVITY ~ LOCATION OF RELEASE @

~ LLl@ W@L-1__:.::NA.;___ _ _ _~ NA 8 9 10 11 44 45 80 PERSONNEL EXPOSURES r:::;;...

NUMBER ~TYPE

• DESCRIPTION~

[TI] 8 jO jO IO 9 11 j(0~@)L-_ __ _ ; ; N = A - - - - - - - ' - - - - - - - - - - - - - - - - . . .80i 12 13 PERSONNEL INJURIES Q NUMBER DESCRIPTION~

~ IO IO IO 1@)1.-______~NA;;;.__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __.

8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY TYPE DESCRIPTION

'43" i.:::.::J

[ill~@ NA 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!c; 80*

8 9 10 68 .ti_9 ".2 c.

.)41.n..dx ,Sn.er.o.f f .A : g

PART

., Commonwealth Edison 1[TITLE OF DEVIATION

• D-DEVIATION REPORT

~D~V~R~N~O-. ___,.;,,,______...._______-.

STA 12 -

UNIT 3 -

YEAR 80 -

NO.

34 OCCURRED 4-20-30 0943 Target Rock Valve 203-3A Out of Tech. Specs. 1% Tolerance .DATE TIME ,

SYSTE/v'* AFFECTED 203 PLANT CONDITIONS ---- - - - - ----* - ----- ri:JJl_!'J~ - --

- -- -- - - - -- -- ---- - ---- - - *:-- ---* - - ------- ~

---Main--Steam ---- - -- --- -~-- ------Mooe Shutdown 0 0 PWR(MWT) LOAD(MWE) YES NO DESCRIPTION OF EVENT 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 DR NO. WR NO.

W. E. Hildy 4/22/80 FAILURE CJil NO N/A N/A RESPONSIBLE SUPERVISOR _DATE PART 2 I OPERATING ENGINEERS COMMENTS 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 6.6.B.2.b NOTIFICATION D D D NO D NO GJ REPORTABLE CCCURRENCE ACTION ITEM NO. PROMPT ON-SITE NOTIFICATION NUMBER R.M. Ragan 4/23/80 10:30 TITLE DATE .TIME

~- 80--19/031..-o 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 CONDITIONS AND THEIR REPORT TO NRC TITLE DATE TIME

_4/23/'f)O _

DATE ACCEPTANCE BY STATION REVIEW AS REOU I RED DATE RESOLUTION APPROVED AND AUTHORIZED FOR DISTRIBUTION

¢tjto DA E 86*5171'- 10-77 (FORM 15*S2*t)