ML19343C894

LER 81-023/03L-0:on 810303,design Review Per IE Bulletin 79-14 Discovered Sleeves 525,529,533 & 537 on TVA 47W470-5 Are Not 4-inch as-built Size.Caused by Incorrect Installation During Const.Sleeves Modified

ML19343C894
Person / Time
Site:	Sequoyah
Issue date:	03/20/1981
From:	Kirk G, Mcgriff J TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19343C890	List: ML19343C889 ML19343C894
References
IEB-79-14, LER-81-023-03L, LER-81-23-3L, NUDOCS 8103250507
Download: ML19343C894 (1)

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o i 21 J Unit 1 in mode 5. A desien re' view o ursuant to ISE Bulletin 70-14 disecvered four sleeves I 8", 8". 6". and  ;

olaj ((mark #'s 325, 529, 5'33, and 537 on TVA 47'J470-51 are' identified as 4"~ for all four.

o e . # 18" nocrinal diameter,' respectively, while the as-built sleeve size is o I s J IThis condition is unacceptable frem a pipe qualification viewpoint since the four seal l o is I lwater injection

• lines passine through the sleeves have movenent in excess of the availablel o } i } l clearance. LCo 3.4.10.a was entered. There was no effect upon public health or safety.

o ,, ,1 reviousP occurrences - none.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

1iolIThe'apparen't cause is incorrect insta11htien durine constmetion. Nedifications'are

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isil icomplete to provide clearance for the pinine through three sleeves. one sleeve (-ark i;7j j#533, 6" nominal dia=eter) has been determined to be acceptable for temporary operation i13; [and will be = edified at the earliest opportunity.

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Name of Preparer '. M. u cCriff/C. 3. A*frk Phone (615) 842-8317 __

8103250507