05000324/LER-1979-084-03, /03L-0:on 790912,1/8-inch Diameter Hole Developed in Nuclear Svc Water Header on Elbow Between 2SW-103-30-157 & 2SW-20-157.Caused by Cement Lining Becoming Detached from Pipe,Allowing Corrosion to Create Hole.Pipe to Be Repl

/03L-0:on 790912,1/8-inch Diameter Hole Developed in Nuclear Svc Water Header on Elbow Between 2SW-103-30-157 & 2SW-20-157.Caused by Cement Lining Becoming Detached from Pipe,Allowing Corrosion to Create Hole.Pipe to Be Replaced

ML19209C432
Person / Time
Site:	Brunswick
Issue date:	10/11/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19209C427	List: 05000324/LER-1979-084, Forwards LER 79-084/03L-0 05000324/LER-1979-084-03, /03L-0:on 790912,1/8-inch Diameter Hole Developed in Nuclear Svc Water Header on Elbow Between 2SW-103-30-157 & 2SW-20-157.Caused by Cement Lining Becoming Detached from Pipe,Allowing Corrosion to Create Hole.Pipe to Be Repl
References
LER-79-084-03L, LER-79-84-3L, NUDOCS 7910150560
Download: ML19209C432 (1)

LER-1979-084, /03L-0:on 790912,1/8-inch Diameter Hole Developed in Nuclear Svc Water Header on Elbow Between 2SW-103-30-157 & 2SW-20-157.Caused by Cement Lining Becoming Detached from Pipe,Allowing Corrosion to Create Hole.Pipe to Be Replaced

Event date:
Report date:
3241979084R03 - NRC Website

text

"

LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l

lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

R lNlClBlE Pl2l@150 l0 l-0 l0 l0 l0 IO l-l0 0 lhl 4 1l1l1l1lh!

l@

7 8 9 LIGENSEE CODE 14 LICENSE NUMSER 25 26 LICENSE TYPE Jo 57 CAT $8 con'T l L l@l 015 l o l-1013 l 214 l@l 019 1121719 @l 1 0 l1l1l 7 l9 g 1

o 1

$ vRCE 7

8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l During normal plant operation, a 1/8" diameter hole developed in the nuclear service l o

2 ITTT1 I water header on an elbow between 2SW-103-30-157 and 2SW-20-157. This leak required l

o 4

the shutdown of the unit for repair.

1 ITTT1 I Technical Specification 3.7.1.2, 6.9.1.9b i

1

[,,o_is,J l 0

7 l

l I

l oTal l 80 7

89 0E ODE SU C E COMPONENT CODE SU8 CODE SU E

[O L9.]

lWlA @ y@

l@ l Pl Il Pl El Xl X @ g@ g @

7 8

9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT R EVISION LER/RO EVENT YEAR R EPORT NO.

CODE TYPE No.

@ RE l 7l 9l

[--j l 0l 8 4l y

l0l3l Ll g

l 0l

_ 21 22 23 24 26 27 N

M 30 31 32 N A P

T M TH HOURS S8 i FOR 8.

SU Ll R MANUF C RER l B lgl34 Xlg l35 Alg g @

l 0l 0l 2l 5 gg

{g lN lg U l0 l8 0lg 36 37 40 48 42 43 44 47 33 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i

o lThe cement lining had become detached from the pipe allowing corrosion to create the l

hole. The area around the hole was UT inspe'ted to determine sound base metal, and a l [i

i g 16" X 6" carbon steel patch was welded over the hole. The pipe will be replaced during g l the next refueling outage, and a study is in progress to the long term suitability of l lall cement-lined piping.

1 4 80 7

8 9 A

% POWER oTHER STATUS ISCO RY DISCOVERY 0ESCRIPTION W h l0 l5 l5 l hlNA l

(A_j@l Operator Surveillance l

i 5 7

8 12 11 44 46 46 80 RELEASED OF RELEASE AMOUNTOF ACTivtTY LOCATION OF RELEASE h

l NA NA l

1 6 PER$oNNEL EXPOSURES NUMBER

DESCRIPTION

l 0 1 0 l 0 h [ TYPE hl NA MNNEI R I l

_Z,_

1 7

_.e PER$oNNE'L iN3u2iES Oh hhfhNlk oESCRiPriON@

)I Nuu8ER I 1T1101010 l@l NA 7

8 9 11 12 80

'#5 ";S^C #Jo' '^ " @

791015o5co E

l hl NA 1 9 7

8 9 10 80 NRC USE ONLY PU8LICITY hl NA 1145 047 i

i i iiiiiiii i iii 2 o 60 69 80 ;

7 8 9 10 919-457-9521 2

A. C. Tollison, JR.

PHONE:

NAME OF PREPARER