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UNITED STATES NUCLEAR REGOLATORY COMMISSION g
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ocket No. 50-289 E
E MEMORANDUM FOR:
H. Denton R. Vollmer E. Case D. Muller M
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G. F,.dison H. Thompson D. Eisenhut B. Snyder
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F. Miraglia G. Holahan1 ' A, & ~ "
G. Lainas S. Varga N
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m, D. Crutchfield J. MillerM C M M h e M W
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John F. Stolz, Chief, Operating' Reactors Branch tr4 E
Division of Licensing
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DAILY HIGHLIGHT STEN! GENERATOR TtBEjPLUGS" ' "
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Investigati'on by the licensee into thel
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A recent minor' steam genera i
ator leakage has uncuvered tube plugging problems.:as tfollows: 4 3
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One tube was not plugged in the upper tube sheeti:5 T ~ P 4-a C
(UTS) although it should have"beenf@hy3Q/MM ~
This c hast"Nd$
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dislodged and " relocated"ito-another; tube.) The One welded plug in OTSG "A" UTS was" supposedly T 2.
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original tube was replugged. b,locationiandith'efMl5M9 plug was removed from its new
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Three rolled plugs from "A"iOTSG andituoifrank,sM&.m g 3.
Mus "B" OTSG were found to 'be:missiriRfrsm#the41oke
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tube sheet (LTS). tThese
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4 490 tubes which have: bee. e ar.e:approxim. ate _lym4.wmpy ~
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vestigating the caust[ofdhisiproblem?andi!the?actionWW#n M
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Nuclear Document Release Form (Refer to EMP.008) j Page / of Release Action
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a Review / Comment a Construction To O As-Builts a Procurement a Record XOperations/ Maintenance a Hold Construction 1
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Onginator Unit N/~/
Budget Activity e //d 8 # 2-WO/SO e List of Released items Company Occument No.
Sheet Rev.
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Specialinstructions i
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4 References / Attachments
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