ML20050A971

LER 82-003/01T-0:on 820211,steam Generator Tube Leak of Approx 0.01 Gpm Indicated by Condensate Steam Air Ejector Offgas Monitor.Caused by Erosion of Tube at Point 31 Inches Above Fifteenth Tube Support Plate.Tube Explosively Plugged

ML20050A971
Person / Time
Site:	Oconee
Issue date:	03/11/1982
From:	Kutzer J DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20050A967	List: ML20050A966 ML20050A971
References
LER-82-003-01T-02, LER-82-3-1T-2, NUDOCS 8204020461
Download: ML20050A971 (1)

Text

- _ _

1

. l s =

l NaC PORae 3s4 U.3.NUCLEAA RECULATORY comas SSION mm LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOCK: l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) i .Q l

o i l l l e I si .cl e N l caos ucamssa E l E I II@1.0 l 0 l - uctass

i. l O l ava.ua 0l0 10 l 0 l - l 01a Ol@as ucama 4 lrves l li al1 l se 1 l@l car @ '

con T 8

U l L 80]@]0 l 5 l0 lOcca 8

010er aua.8 en l 2l8 l7 @l es 012 se l1avthr l1 oAl 8 rt l 2 l@l0 l 3 atPCAr

7. 7s l 1 lOAT 1l E81 2l@

EVENT orScairnON AND PROSA8LE CONSECUENCES h o 2 i On February 11, 1982, a steam generator tube leak of approximately 0.01 gal / min; A l was indicated by the Condensate Steam Air Ejector Of fgas Monitor. The leak rate ,

, .  ; increased to 0.03 gal / min on February 15, 1982 and the unit was shut down for ,

g i repair. Personnel and systems adequately controlled this event and the releases g IoTel l_were well within remilatory limits: thus, the health and safety of the public l o , l were not affected by this event. ,

EI I

'7f# TE! #.co!. co o wrcow

.n*'o.

L,a_uj. l c) nlg g@ l nl@ u l 11l Tl E F lL l 11l@ .Jc"o' bgg l zi@

. i. i. u i. i. =

_ secue=mi. occ;a=<=ce meno=Y asvision.

sv'afvt^a a **ca r "o. coca rvre wo.

@ "u'y niao (-.] lu Of 0l3 l M l 0l ll W d lu 8l 21 u u a u a a a u

[_0_[

u

=. ~ =.: at = r ~= ,3=.. 'rt.ar ==Ie.

Qlz u a l@ la A l@ y@ a ln 01 3l 8 4l@lW@ T. = ' lNl@ l Nl@ [B l Ol Il Sl@

.. o => .,

cAuse oescairnoN ANo conReenvs Acnous @

gThe apparent cause of the tube leak was erosion of the tube at a point 31 inchest i i l'above the fifteenth tube support plate. The leaking tube was stabilized from thq g g. top and was explosively plugged from the bottom. Eddy current testing indicated

, 3 l one tube with a 52% through wall indication, which was plugged, also. ,

i l I

e .

se ST  % Power oTHeR ERAT 1JS Dis av R of eRY oEWmPrios, y J@ l 1l0 l 0 l@l NA [' W @l Operator o servation l

e4 4, is u ** *

• es aetnesso o= astaase Q' y @ Q'etan d es l 2.05 curies ouar ce actmrv @

l Stack to Locerion l Vent ce asteese h atmos; CST to Keowee tailtace

' ' cen ca "

, , j (['l Sg gl ***

• Maintenance personnel - 25.37 man-Rem l

i e

' ' .censo.u e= e'U uu2escasceimoa@

l 010 l0 l@l NA l

' b, a stii=~""e e

8,. E. j@:l i.

NA l

ev.uo" .

, NRC USE ONLY 2 o @l NA l IllIIlIIIIIIl NAME C# PREPAngM J. F. Kutzer T7@)373-7139 PHON E:

8204020461 B20311 PDR ADOCK O.)OOO287 S PDR

_ _ - _ _ - - -.. _ _ __