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LER-1978-064, Forwards LER 78-064/03L-0
Event date:
Report date:
	2371978064R00 - NRC Website
	v • d • e

Forwards LER 78-064/03L-0
	ML17173A453
Person / Time
Site:	Dresden
Issue date:	12/21/1978
From:	Stephenson B; COMMONWEALTH EDISON CO.
To:	James Keppler; NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17173A456	List: 05000237/LER-1978-064, Forwards LER 78-064/03L-0; 05000237/LER-1978-064-03, /03L-0 on 781124:leak Found in 6x6x4 Eductor on the 2/3 Waste Collector Tank Recirculation Line.Caused by Acid Corrosion of Carbon Steel Side of Weld;Carbon Steel Flange Will Be Replaced W/Flange of Stainless Steel;
References
	78-1637, NUDOCS 7812290210
	Download: ML17173A453 (3)
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e Commonwealth Edison ! !i Dresden Nuclear Power Station R.R. #1

. Morris, Illinois 60450 Telephone 815/942-2920

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December 21, 1978 BBS LTR #78-1637 James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 Reportable Occurrence Report 1178-064/031-0, Docket #050-237 is hereby submitted to your office in accordance with Dresden Nuclear Power Station Technical Specificaticn 6.6.B.2.(d), abnormal degradation of systems other than those specified in item B.l.e.designed to contain radioactive material resulting from the fission process *.

BBS/deb Enclosure cc: *Director of Inspection & Enforcement *

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Director of Management Information & Program Control File/NRG

REGULATORY DOCKET FJLE COPY

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LICE~JSE-E EVErJI REPORT CONTROL BLOCK:

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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74 75 REPORT DATE BO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

!During routine inspection in the 2/3 Radwaste basement, a leak was found in the

!Im 16" X 6" X 4" eductor on the 2/3 waste collector tank recirculation line (2/3-20150-4")4 [QJI] !Safety significance minimal since all leakage contained in Radwaste floor drain systemJ

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B SYSTE~1 CODE IM IA I@

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CAUSE

CAUSE COMP.

CODE SU9COOE co.*.:PONENT CODE SUBCODE UJ@ LPJ@ 1p1r1 p 1E1x1x1e w 11 12 13 18 HJ SEQUENTIAL OCCUR REi'iCE REFORT V~.LV=

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CODE TYPE IV' :i~~~; I 1 I s I I I

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I I 21 22 23 24 26 2 7 28 29 30 31 REVISION NO.

LQJ 32 80 ACTIOIJ FUTURE EFFECT SHUTDOWN

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ATTACHMENT NPRD-4 PRIME C0\\1P.

T,O.KE!-l ACTIO:~

O~JPLANT MET!-iOD HOURS SUBMITTED FORM SUB.

SUPPLIER COMPO.'l!ENT MA;*UFACTURER Ll.J@lLJ@

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33 34 35 36 37 40 41 42 43 I GI 0 ! 8 I 0 I CAUS:: DESC~IPTIOi\\J AND CORRECTIVE ACTIONS @

44 47

!Probable cause-acid COLrosion of the carbon steel side of weld.

Leak repaired by pad ITIIJ 1welding.

The carbon steel* flange will be replaced with one made of stainless steel,

I o:JJJ 1which is not susceptible to corrosion from dilute acid.

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FACILITY

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METHOD OF

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Commonwealth Edison

-=--~V~ATION R~EPORT.

DYR NO.

I STA UNIT YEAR NO.

D-12-2/3 123 PARTl[TITLE OF DEVIATION OCCURRED

2/.3-R..W.* -Wast_e-Gol-lec. -~or-reci-rc-line-leak-------------------- --1T/T4778 __._0_Tff0~

.DATE TIME SYSTEM AFFECTED 2000 PLANT, CONDITIONS TESTING CJ OCT 2/3 Rad Waste MODE N/A PWRfMWT)

N/A

, LOAD(MWE)

N/A YES NO DESCRIPTION OF. EVENT While making routine inspection of pumps in 2/3 RW basement the waste collector recirc line was found to have pinhole leaks on a 3" reducer flange.

DESCRIPTION OF GAUSE Water erosion on the inside of reducer

.. OTHER. APPL I CABLE INFORMATION W.R. No. 9199 was submitted, use of WC pump kept to a minimum and replacement of piping put on priority as soon as feasible.

EQUIPMENT Ll[] YES DR NO.

FAILURE CJ NO NA WR NO.

9199 PART 2 I OP ER AT I NG ENGINEERS COMMENTS Larry Larsen

_ RESPONSIBLE SUPERVISOR All leakage contained within normal plant drain systems.

11/24/78

.DATE TYPE OF DEVIATiON EVENT OF POTENTIAL REPORTABLE OCCURRENCE PUBLIC INTEREST TECH SPEC VIOLATION NON-REPORTABLE

OCCURRENCE ANNUAL REPORTING SAFETY-*

RELATED WR ISSUED D 14 DAY D 10CFR21

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30 DAY NOTI Fl CATIQN D

LXJ 6.6.B.2.(dJ REPORTABLE OCCURRENCE NUMBER ACTION ITEM NO.

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78 -

64 - 03L-0 NA 24-HOUR NRC NOTIFICATION DTPH NA REGION I I I DATE TIME DTGM NA REGION I I I & DOL CATE TIME.

RESPONSIBLE COMPANY OFFICER INFORMED OF IOCFR21 C NDITIONS AND THEIR REPORT TO C

ACCEPTANCE BY STATION AS REQUIRED DATE RESOLUTION APPROVED AND AUTHORIZED FOR DISTRIBUTION D

D YES~

YES D

.No*O NO ~

PROMPT ON-SITE NOTIFICATION A. Roberts Asst. Supt.

Tl TLE.

NA TITLE PROMPT OFF-SITE NOTIFICATION F. Palmer Tl TLE J.

11/28/78.

DATE DATE 11/28/78 DATE 11/28/78

.DATE DATE

.ll/28/}8_

DATE 1500 TIME TIME 4:20

.TIME 4:20 TIME TIME

.. 86-5176 10-77

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Event date:
Report date:
2371978064R00 - NRC Website
v • d • e

05000237/LER-1978-064, Forwards LER 78-064/03L-0

text

CAUSE

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