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| {{Adams
| | #REDIRECT [[05000313/LER-1979-005, Forwards LER 79-005/03L-0]] |
| | number = ML19344B061
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| | issue date = 08/15/1980
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| | title = /03L-0:on 800716,during Power Operation,One Small Primary to Secondary Leak Developed in Tube 74-1 of Steam Generator E24A.Cause of Failure Believed Similar to Defective Tubes Reported in LER 79-005/03L-0
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| | author name = Shively C
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| | author affiliation = ARKANSAS POWER & LIGHT CO.
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
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| | docket = 05000313
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| | license number =
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| | contact person =
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| | document report number = LER-80-026-03L-01, LER-80-26-3L-1, NUDOCS 8008250508
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| | package number = ML19344B060
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 1
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| }}
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| {{LER
| |
| | Title = /03L-0:on 800716,during Power Operation,One Small Primary to Secondary Leak Developed in Tube 74-1 of Steam Generator E24A.Cause of Failure Believed Similar to Defective Tubes Reported in LER 79-005/03L-0
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| | Plant =
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| | Reporting criterion =
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| | Power level =
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| | Mode =
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| | Docket = 05000313
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| | LER year = 1979
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| | LER number = 5
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| | LER revision = 0
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| | Event date =
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| | Report date =
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| | ENS =
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| | abstract =
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| }}
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| | |
| =text=
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| {{#Wiki_filter:,a V
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| ~
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| i NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION (7 77)
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| LICENSEE EVENT REPORT EXHIBIT A CONTROL 8 LOCK: l l l l l l lh IPLE ASE PRINT OR TYPE ALL REQUIRED INFORMATION) l Al R l A l Nl 0 l 1lg]50l0 l -l0 l0 l 0l 0} 0 l-l 0 l0 ]g l1 l 1l1 l 1lgl l lg O i 9
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| LICENsit CODE 44 1
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| LICENst NuwetH 25 26 uttNst evet JG b3 CAT 6e 7
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| 8 CON'T l' % [l:_j@l015 p l0 l 0 ]311 131@l 0 ! 7l1 l 618101@l0 l 8111 SI 8101@
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| O i F
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| S to 61 00C8tET Nuuggn 68 69 EVENT DATE 34 FS HEPOR10 ATE 80 EVENT DESCRIPTION AND PROSABLE CONSEQUENCES h LO_12) I During Power operation, a small primary to secondary leak developed, i
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| O 3 1,c inaar,+na ky nn incenn en nr +ko rnnannen, ve riu-pump nyk,nct i
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| tradiation monitor indication.
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| Leakage was verified to be from Steam i
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| O a Generator, E24A, by chemical analysis of the secondary system activity.
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| g IOisi I 10161 IThe RCS l enkrate l imit per T.
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| S.
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| 3.
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| 1 6.
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| 1 and the secondarv system i
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| l activity limit per T. S. 3.10 were not exceeded. An orderly unit shut-l O,
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| 109IIdnwn was er ectit ed. There were nn similnr nceurrences.
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| Pennrtable ner I
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| T.'& 6. 12". 3. 2" d svsite causs CAvss C D..
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| v COO 4 CCCE sueCODE COMPONE NT Cout
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| ,o m
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| .o (g n,a EVE NT vE A84 R E POR T O E
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| 1
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| l 013 I [Lj
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| _2n 27 23 24 26 27 7e
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| .w a
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| si 32 T Ast N A TO PLA T WET wouns 22 se T O FOm SUN LDJ@L.21@ l^l@
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| L.AJ@
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| lBjd&hTUR[$lg R
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| wA l
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| 33 34 3s 36 33 40 40_
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| gg gj gg 47 CAUSE DESCR.PTION AND CORRECflVE ACTIONS 27 m lFollowing unit shutdown, testing identified leaker to be tube 74-1.
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| Testi g ;ing also revealed tube 140-68 to have an extremely small amount of leak-i m lage. A sampling of tubes around each leaker 6 all of the "open lane" r
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| l tubes were Eddy Current Inspected. Tube 78-62 was identified to have a
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| , 3 E ' 61 % thruwall OD d efec t.
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| Cause of failure is believed to be similar i
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| ',Mgrypreviously identified def tim tubes reported by LER 50-313/ S-005.
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| a theNr 2MN " ice-i li is I
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| @ l Il I kl3 tgW'Wfe Ipfg i
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| A!TiviTv CO'" TINT so 36 RELE Asf D 08 p*LE ASE AwouNT OF ACTIVITY toca re li lc l [Gj @ [NJ@l 17_7 curies, Pred. Xh-133[ Primary to Seconlos pitgAstary to Condenser tg nasON 'El en.OsEs At mos.
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| fauu6fp TYPE OfsCRoPT*ON l 1101 0l@[E j@l Maintenance / Inspection - 16.8 MAN-REM g
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| i i
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| ' n sO,.Na',uu'4 s_
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| =
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| et>CaiericNh uveta 8101010 l@l NA l
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| 7 8 9 11 12
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| '35c' " * '"'f,'O, '''' " " @
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| T i sC.
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| l.,Hj@[_ Sten-Genevn tnr Tube Leak l
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| ')
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| euousTv OtsC..,nON @
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| NHC USE ONLY issue 0@L Sews Rel ea se l'YJ 1 IfIlll1ilt!!l 2
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| * Chris N. Shively Nh%b3M NAVE or PREPARER
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| ,g oy,;
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| 8 008250 pog
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| }}
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| {{LER-Nav}}
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