05000255/LER-1979-023-03, /03L-0 on 790518:leak in Regenerative Heat Exchanger (E-56) Shell Side Vent Line Resulted in Degradation of Chemical & Vol Control Sys.Caused by High Porosity in Weld.Weld Ground Out & Repaired

/03L-0 on 790518:leak in Regenerative Heat Exchanger (E-56) Shell Side Vent Line Resulted in Degradation of Chemical & Vol Control Sys.Caused by High Porosity in Weld.Weld Ground Out & Repaired

ML18043A750
Person / Time
Site:	Palisades
Issue date:	06/18/1979
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A748	List: 05000255/LER-1979-023, Forwards LER 79-023/03L-0 05000255/LER-1979-023-03, /03L-0 on 790518:leak in Regenerative Heat Exchanger (E-56) Shell Side Vent Line Resulted in Degradation of Chemical & Vol Control Sys.Caused by High Porosity in Weld.Weld Ground Out & Repaired
References
LER-79-023-03L, LER-79-23-3L, NUDOCS 7906220269
Download: ML18043A750 (1)

LER-1979-023, /03L-0 on 790518:leak in Regenerative Heat Exchanger (E-56) Shell Side Vent Line Resulted in Degradation of Chemical & Vol Control Sys.Caused by High Porosity in Weld.Weld Ground Out & Repaired

Event date:
Report date:
2551979023R03 - NRC Website

text

l PALISADES NRC FORM366 (7-77)

U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I I G)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

[ili] IMII"IPI AILP. 1010101-1°1°101°1°1-1°1°101411111111101 I 1© 7

8 9

LICENSEE CODE 14

,5 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T [iliJ 7

8

~~~~~ L_!ij@ I o I 5 I o I o I o I 2 15 I 5 101 o 1 5 I 11 8 17 19 I@ jO I 6 I 1 1 s I 7 I 9 1 G) 60 61 DOCKET NUMBER 68 69,

EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRiPTION AND PROBABLE CONSEQUENCES@

[]JIJ I During preparations for start.11p, a 1 eak in the regeueratiJTe heat exchanger I 1II2J I (E-56) shell side vent line resulted in degradation of the CVCS.

The leak I

!IE] I was through a weld in the 3/4-inch vent line.

This occurrence is report-

[QJIJ able per TS 6.9.2.b.4.

No threat to public health or safety existed.

[ill]

filTI [QJ]J 7

8 9 IITIJ 7

8 SYSTEM CODE

CAUSE

CAUSE CODE SUBCODE COMPONENT CODE COMP.

SUB CODE VALVE suscocE IP I cl@ LEJ w@ IH 1 Tl Elx 1c IH 1e 9

10 UJ UJ@

r::::;-..

LEA/AO CVENTYEAR

~

REPORT I 7 I 91 NUMBER 21 22 11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REPORT NO.

CODE TYPE I I Io I 2 I 31 Ld I o I 3J LJJ 23 24 26 27 28 29 30 20 1=:J 31 ACTION FUTURE EFFECT SHUTDOWN r::;::.,

ATTACHMENT NPRD-4 TAKEN ACTION ON PLANT METHOD HOURS -

SUBMITTED FOAM :;us..

PRIME COMP.

SUPPLIER W@l.!J@ L£J@ L!.l I o 10 11 I 51 LI@ L!J 33.

34 35 36 37 40 41 42 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

l!J 43 REVISION NO.

• LQJ 32 COMPONENT MANUFACTURER I A 15 I 415 I@

44 47, I The leak resulted from high porosity in the weld.

The weld was ground out 1J]J] I and rep.aired.

lIIIl 7

8 9

FACILITY IJQ\\

STATUS

% POWER OTHER STATUS v::::I [i]I] LQJ@ Io I o I Ol@..... I -'N /'"""A.;.__ ___

80 METHOD OF

~

DISCOVERY DISCOVERY DESCRIPTION ~

L!J~/Onerator Observation 7

8 9

10 12 13 44

~TI~TY

~RITT

~

RELEASED OF RELEASE AMOUNT OF ACTIVITY ~

[QI] LI..!@ W@I N/A I

7 8

9 10 11 44 45 46 80 45 N/A LOCATION OF RELEASE @

80 PERSONNEL EXPOSURES r:;;:;...

NUMBER

~TYPE r:;;;., DESCRIPTION [IEJ I o I ol o lIU....._=N..... A=--------------------------'

7 8

9 11 12 13 PERSONNEL INJURIES c::;.,

NUMBER DESCRIPTION~

~I olo lol@).__._N:..<...:.:A ________________________ _.

80 7

8 9

11 12 b

Loss o* OR DAMAGE TO FAC1 LITY f.i3\\

7 °J (J l 7

I Q I 7

TYPE

DESCRIPTION

{_,;

(_,.

c;t-

~

LzJ@)~I

~N~/~A..._ ___________________________

~

8 9

10 PUBLICITY

(.;;:\\

SE ISSUEDQDESCRIPTION~

NRC U ONLY II[§] LlU~---N~/_A ________________________

~

I I I I I I I I I I I I I

BO 80 7

8 9

10 68 69 80